Bryan Ennis v. State of Tennessee ( 2020 )


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  •                            NOT RECOMMENDED FOR PUBLICATION
    File Name: 20a0637n.06
    Case No. 19-6334
    UNITED STATES COURT OF APPEALS
    FOR THE SIXTH CIRCUIT
    FILED
    Nov 10, 2020
    BRYAN ENNIS,                                        )                     DEBORAH S. HUNT, Clerk
    )
    Plaintiff-Appellant,                      )
    )      ON APPEAL FROM THE UNITED
    v.                                                  )      STATES DISTRICT COURT FOR
    )      THE EASTERN DISTRICT OF
    STATE OF TENNESSEE, dba University of               )      TENNESSEE
    Tennessee,                                          )
    )
    Defendant-Appellee.                       )
    )
    ____________________________________/
    Before: MERRITT, MOORE, and GIBBONS, Circuit Judges
    MERRITT, Circuit Judge. Plaintiff Bryan Ennis, a former professor at the University of
    Tennessee at Chattanooga, appeals the district court’s grant of summary judgment to the
    University on his hostile work environment and retaliation claims. Because Plaintiff fails to
    establish a prima facie case for either claim, we AFFIRM the district court.
    I. Factual Background
    i.      Hiring
    In the summer of 2013, Plaintiff accepted a position of Associate Professor in the
    Department of Civil and Chemical Engineering within the College of Engineering and Computer
    Science at the University of Tennessee at Chattanooga. Plaintiff’s appointment was tenure track,
    with a six-year maximum probationary period. As part of his appointment, the University agreed
    Case No. 19-6334, Ennis v. State of Tennessee dba University of Tennessee
    to provide start-up costs over two years for research funds and developing his laboratory.
    Additionally, Plaintiff’s engineering firm, E&G Associates, loaned equipment to the University
    for use in Plaintiff’s laboratory. In Plaintiff’s outside interest disclosure form, he noted that he
    had an interest in E&G; the firm would maintain access to the equipment for consulting projects
    outside the University; he would continue to consult with E&G on an irregular basis; and that the
    firm may provide research grants to the University. Dr. William Sutton, Dean of the College at
    the time, reviewed this form, and indicated that Plaintiff’s son was to take over E&G at some point;
    Plaintiff mentioned this in his interviews; and there was no conflict.         Plaintiff began his
    employment with the University on August 1, 2013.
    ii.       Reappointment for 2014–2015 Academic Year
    On January 30, 2014, Dr. Joseph Owino, the Department Head, wrote a memo to Dean
    Sutton, recommending Plaintiff’s reappointment for the 2014–2015 academic year. Dr. Owino
    noted that, among other things, he considered the recommendation of the Rank, Tenure, and
    Promotion Committee, and that Plaintiff had “excellent student reviews” for the Fall 2013
    Semester. In an evaluation dated March 31, 2014, for the 2013–2014 academic year, Plaintiff
    received from Dr. Owino an evaluation of “Exceeds Expectations[.]” Owino wrote that Plaintiff
    had “already demonstrated in his first year a clear dedication to student development and
    instruction[.]” After mentioning Plaintiff’s achievements and contributions for the year, the
    evaluation concluded that Plaintiff “[l]ed significant team building and research efforts” and
    “[w]as responsible for large gifts to support research.”
    iii.      Spring 2014
    In the remainder of 2014, Owino began to notice a few problems with Plaintiff’s
    performance. “First, his student teaching evaluation scores were below expectations.” He also
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    had “two sons who were students in the College, and he had attempted to intervene with their
    professors on their behalf on a few occasions.” As faculty evaluations began for the next academic
    year, Dr. Owino noted in a November 21, 2014, memorandum that Plaintiff’s average student
    rating for the Spring 2014 semester was a “3.97 with a high of 5.92 and a low of 2.42 out of a
    possible score of 7.0.” He stated that the “chemical engineering faculty’s average [was] above 6.5
    during the same period.” Dr. Owino also wrote that “[t]here were several disturbing comments
    from the students that” he asked Plaintiff to address. He stated that because of the low teaching
    evaluations, he asked the University’s Office of Audit and Consulting Services to elicit feedback
    from students. He claims he ordinarily makes such a request following a faculty member receiving
    low teaching evaluations.
    iv.         Potential Elimination of the General Engineering Program
    During the Spring and Fall of 2014, the College engaged in serious discussions about the
    potential elimination of the general engineering program. Some faculty members wanted to
    eliminate the program, and others wanted it retained. Dr. Cecilia Wigal had primary administrative
    responsibility over the program and was the most vocal proponent of it. Several faculty members
    supported her, including Plaintiff.
    David Cummins, a prominent alumnus of the College, wrote a letter to Dr. Wigal on May
    19, 2014, expressing his concern about the elimination of the program. He emailed Interim Dean
    Alp and Provost Ainsworth noting the same concerns.1 Interim Dean Alp, Dr. Owino, and Dr.
    Frank Jones met with Plaintiff on October 24, 2014, to discuss Cummins’ concerns, as Plaintiff
    and Cummins were close friends. According to Plaintiff, Dr. Owino and Interim Dean Alp
    suggested that he not talk to or associate with certain faculty, including Dr. Wigal. He claims that
    1
    Alp served as Interim Dean of the College from May 8, 2014 until December 31, 2015.
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    he “objected to such requests as inappropriate and unprofessional as [he] believed this was gender
    discrimination in the treatment of Dr. Wigal.” Interim Dean Alp and Dr. Owino both stated that
    they “may have cautioned [Plaintiff] to be mindful about internal politics and the impact such
    politics can have on one’s professional development” but “never instructed [him] not to talk to
    anyone, including Dr. Wigal.”
    Plaintiff states that following this meeting, he expressed concerns “about being asked to
    not talk to certain faculty, especially as an ‘untenured faculty’ to several senior” faculty members
    in the College. He also relayed concerns about “the manner in which [Dr.] Wigal was being
    targeted, and her general engineering programs [being] eliminated without proper review.”
    Plaintiff states that he also specifically discussed with senior faculty “the discrimination and
    retaliation [he] felt was being directed at Dr. Wigal” but does not indicate to whom he spoke.
    Plaintiff spoke to Bryan Samuel of the Office of Equity and Diversity about the proposed
    elimination of the program. In a transcription from a May 11, 2015, interview with Samuel,
    Plaintiff stated:
    I in a set of circumstances have defended Wigal. And how the general
    engineering program has been handled. Okay, there are a set of open
    meetings and I said it’s not so much as supporting her but subjecting to the
    process which things were being done. I don’t’ think they handled them
    correctly. Faculty are supposed to have input in these decisions and they
    weren’t supposed to have input in these decisions. People perceive that I
    was supporting Dr. Wigal and it was basically retaliation for supporting Dr.
    Wigal. She’s trying to defend her program and the fact that I’m not going
    along with the crowd and saying no this is not appropriate what are you
    doing, this is retaliation.
    …
    I believe there has been a set of retaliation against me because of my support
    or my perceived support of Dr. Wigal’s program. What I’m more concerned
    about is the appropriate process weren’t involved.
    According to Samuel, Plaintiff never mentioned in any of his interviews or emails that he
    believed Dr. Wigal was a victim of gender discrimination. Plaintiff, however, claims that he did
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    discuss with Samuel gender discrimination and harassment towards Dr. Wigal. Additionally,
    Samuel received a complaint from Dr. Wigal asserting harassment and a hostile work environment
    based on gender discrimination. Dr. Wigal never mentioned Plaintiff as a corroborating witness.
    Samuel interviewed five potential witnesses, and none of them mentioned Plaintiff. Samuel was
    unable to substantiate Dr. Wigal’s complaint.
    v.    Fall 2014 Workshop
    Plaintiff hosted a workshop in the Fall of 2014 for the Department and local industry
    representatives. Dr. Owino and Interim Dean Alp gave Plaintiff permission to conduct the
    workshop. Both expected that Plaintiff would collaborate with the University’s marketing and
    event planning staff, but he conducted the workshop with little involvement from the University.
    Plaintiff promoted the event as a joint event hosted by the University and E&G Associates. At the
    time, both Interim Dean Alp and Dr. Owino thought Plaintiff had resigned from the firm and
    neither knew it would be a joint event.
    The workshop was complimentary for all participants, which included industry
    representatives, students, and faculty. Plaintiff states that Provost Ainsworth and Chuck Cantrell,
    Associate Vice Chancellor of Communications and Marketing, praised the success of the event.
    According to Owino, alcohol was available at the event, which violated the University’s fiscal
    policy and was problematic because several students were there. He stated that the event “was an
    embarrassing incident for the College that required the involvement of the Provost and the Vice
    Chancellor for Finance and Administration.” This confusion led Dr. Owino to ask the University’s
    Conflict of Interest Committee to investigate Plaintiff’s relationship with E&G Associates, which
    identified a conflict and clarified expectations for the future.
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    vi.       Reappointment for the 2015–2016 Academic Year
    On December 1, 2014, Dr. Wigal informed Dr. Owino that the Rank and Tenure Committee
    voted 5–0 in favor of Plaintiff’s reappointment for the 2015–2016 academic year. Dr. Wigal’s
    memorandum states that Plaintiff’s achievements were consistent with committee guidelines and
    showed potential for continuing contributions to the College.
    That same day, Dr. Owino wrote a memorandum to Interim Dean Alp concurring in the
    committee’s recommendation. After highlighting that Plaintiff had written two major grants and
    made valuable local industry contacts, he expressed concerns about Plaintiff’s student teaching
    evaluations. He noted that “[s]ome of the evaluations are satisfactory and others are below
    acceptable levels.” Additionally, Dr. Owino wrote that another area of concern is Plaintiff’s
    intervention on behalf of the education of his sons, and pointed out that Plaintiff had on two
    occasions asked him to intervene in his sons’ education.
    On December 2, 2014, Interim Dean Alp wrote to Provost Ainsworth additionally
    recommending Plaintiff’s reappointment. She also noted that Plaintiff needed some improvement
    in his teaching evaluations and needed to minimize intervening in his children’s education. Interim
    Dean Alp on December 15, 2014, wrote to Plaintiff congratulating him on his reappointment but
    also mentioned the same concerns.
    vii.      Application for Early Tenure and Promotion
    In February 2015, Plaintiff applied for tenure and promotion to Full Professor. This
    surprised Interim Dean Alp and Dr. Owino because Plaintiff had been at the University for less
    than two years, and his probationary period was originally supposed to be six years. Interim Dean
    Alp stated that she could not “recall another instance . . . when a faculty member applied for tenure
    with so much additional probationary time available.”         Additionally, Plaintiff’s application
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    surprised her because Dr. Owino had already identified some deficiencies in his performance. Dr.
    Owino expressed the same surprises. Plaintiff, however, contends that he was offered as short as
    a three-year probationary period during the hiring process and that Dr. Owino had discussed with
    him several times the possibility of early tenure and promotion.
    On March 16, 2015, Dr. Wigal informed Dr. Owino that the Rank and Tenure Committee
    voted 0–5 against granting Plaintiff tenure. Dr. Owino, on the same day, wrote to Interim Dean
    Alp concurring in the Committee’s recommendation.            He noted the brevity of Plaintiff’s
    employment at the University and his limited teaching experience before joining the University.
    Dr. Owino also mentioned that Plaintiff’s teaching evaluations for the 2013–2014 academic year
    were “average” and while his ratings improved in the Fall of 2014, “an improvement of one
    semester is not enough” to grant tenure.
    Also on March 16, 2015, Dr. Wigal wrote to Dr. Owino informing him of the Committee’s
    vote 3–1–0 to recommend promoting Plaintiff to Full Professor. The same day Dr. Owino wrote
    to Interim Dean Alp recommending denying the promotion. He highlighted that the Faculty
    Handbook states that faculty members generally serve a minimum of five years as an associate
    professor. Dr. Owino also noted the same deficiencies outlined in his recommendation that tenure
    be denied. Interim Dean Alp, Provost Ainsworth, and Chancellor Steve Angle concurred in
    denying Plaintiff promotion to Full Professor.
    viii.   Spring 2015 Sexual Harassment Complaint
    On April 22, 2015, Plaintiff emailed Samuel and Dan Webb, the University’s Human
    Resources Director, and copied two local attorneys to the email. While the email is not in the
    record, Plaintiff characterizes it as a sexual harassment complaint.
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    The basis of the complaint was that Plaintiff made a purchase request on March 5, 2015,
    for Citric Acid. Faculty purchase requests are made through the College’s Technical Support
    Office. Karl Fletcher was the manager of the office and personally reviewed all purchasing
    decisions within the College. The supplies were purchased from a company called Sigma-Aldrich
    and delivered via FedEx on March 24, 2015. The order was addressed to “Dr. Penis,” University
    of Tennessee – Chattanooga, Tech Support. Plaintiff did not know of the delivery until a student
    informed him of it around April 7, 2015. Plaintiff states that he was humiliated by the event and
    that it “was a vindictive and retaliatory act” by the University “for opposing discriminatory acts
    being taken against [Dr.] Wigal[.]”
    Samuel investigated the matter and interviewed Plaintiff, Fletcher, Interim Dean Alp, other
    University officials, and officials at Sigma-Aldrich. Fletcher adamantly denied knowledge of the
    incident, [id.], and stated that he “assumed it was an auto-correct error or an error by the vendor.”
    He also admitted to approving the purchase and assumed responsibility. While the investigation
    into the package was ongoing, Plaintiff made another complaint to the Office of Equity and
    Diversity alleging that Fletcher retaliated against him by refusing to order a “clone computer.”
    Fletcher stated that he was concerned about the compatibility of the computer because it was unlike
    any other computers at the college. He evidently offered to purchase a Dell computer that was
    equally powerful, configured identically, was compatible with the College’s technology
    infrastructure, and was less expensive.
    On October 14, 2015, Samuel completed both investigations. He concluded that the
    mislabeled package violated the University Code of Conduct and the University’s Policy on Sexual
    Harassment.    Fletcher was required to attend a sexual harassment training class, which he
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    completed. Samuel also found that Plaintiff had the right to order the computer, but also found
    that Fletcher did not retaliate in refusing to order it. Plaintiff ultimately received the computer.
    While Samuel conducted the other investigations, Plaintiff made another complaint on
    August 18, 2015, alleging that Interim Dean Alp and Dr. Owino retaliated against him for his
    sexual harassment complaint against Fletcher. Plaintiff alleged that (1) they refused to assign
    Plaintiff his full teaching load until one week before the beginning of the academic year;
    (2) approached another faculty member about replacing Plaintiff as an advisor for a student
    program; (3) “appeared” to have made misrepresentations to the Conflict of Interest Committee in
    connection with Plaintiff’s affiliation with E&G Associates; (4) Dr. Owino required Plaintiff to
    make formal requests to use laboratory equipment when no such requests are required; and
    (5) Fletcher delayed Plaintiff’s order of computer parts, although Dr. Owino and Interim Dean Alp
    both approved of the order.
    Samuel investigated these complaints as well. He found no support for retaliation by Dr.
    Owino. Samuel did find, however, “one minor instance of misconduct.” On August 26, 2015,
    Samuel sent Dr. Owino a letter regarding the investigation. Dr. Owino posted this letter on his
    office door, where it remained for about 30 minutes until Samuel was notified and removed it.
    Samuel recommended to Provost Ainsworth that the posting of the letter by Dr. Owino violated
    the University’s Code of Conduct and its Equal Employment Opportunity policy. Provost
    Ainsworth imposed a sanction of mandatory compliance training. Samuel found no evidence of
    retaliation by Interim Dean Alp. Provost Ainsworth agreed with Samuel that there was no evidence
    of retaliation by either Interim Dean Alp or Dr. Owino.
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    Plaintiff appealed both of Provost Ainsworth’s decisions to Chancellor Angle. Angle
    concurred with Ainsworth, and Plaintiff then appealed to Joe DiPietro, President of the University
    of Tennessee. President DiPietro also concurred.
    In 2017, Justin Worley, a student-employee who previously worked in Technical Support
    Office, admitted to mislabeling the package. Worley indicated that he had written the misnomer
    as a joke, with no sexual connotation whatsoever. He expected the Technical Support Office to
    find the error before Plaintiff received the package.
    ix.      Faculty Evaluation for the 2014–2015 Academic Year
    For the 2014–2015 academic year, Plaintiff received a “meets expectations” rank. Dr.
    Owino noted that Plaintiff met objectives successfully for that academic year and that his student
    reviews had improved from the previous academic year. The evaluation also states, however, that
    despite being advised to post his office hours, Plaintiff had not done so, and several students
    mentioned they could not access him during office hours. Additionally, it states that Plaintiff was
    absent from several classes and that he did not inform Dr. Owino of such absences. Plaintiff met
    research and scholarly expectations.
    x.       Student Evaluations for Spring 2015 and Fall 2015
    Owino on March 3, 2016, wrote a memorandum documenting Plaintiff’s student
    evaluations for Spring 2015 and Fall 2015. He noted that “[s]tudents consistently complained
    about [the] lack of timely feedback on assignments and exams[,]” and that Plaintiff received “as
    low as 2.15 out of 7 for the question on the timely feedback of assignments and exams.” Students
    also stated that Plaintiff was “not normally present during laboratory periods to answer questions.”
    [Id.] Dr. Owino wrote that after reviewing course folders, he noticed that graded work was not
    returned to students, and that the course folders contained students’ original work. He noted that
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    these comments were nearly identical to comments shared with Plaintiff during the previous
    reappointment cycle, which made it apparent that Plaintiff did not adequately address Owino’s
    previous comments.
    xi.       Faculty Evaluation for the 2015–2016 Academic Year
    Plaintiff’s faculty evaluation for the 2015–2016 academic year stated that his “teaching
    evaluations are low and not improving.” It noted that “students are dissatisfied” with Plaintiff’s
    lack of timely feedback on assignments and tests and that his course folders were incomplete,
    suggesting that he compiled them in a hurry. The form further states that Plaintiff’s proposal
    submission and grant securing was inadequate for rank and status as a probationary faculty
    member, but that he secured a $75,000 grant with others. Additionally, the form notes that Plaintiff
    did not participate in a self-study report, despite being continually asked by Dr. Frank Jones, and
    another faculty member thus performed the task. Plaintiff attended “2 out of 9 meetings on the
    University Curriculum committee and 5 out of 7 meetings as the college senate representative.”
    Ultimately, Plaintiff received a rating of “Needs Improvement[.]” Plaintiff and Dr. Owino signed
    this document in April 2016.
    xii.      Final Reappointment for 2016–2017 Academic Year
    On February 25, 2016, Dr. Frank Jones notified Owino that the Rank and Tenure
    Committee voted 2–3–1 against recommending Plaintiff for reappointment for the 2016–2017
    academic year. Dr. Jones stated that the committee felt that Plaintiff’s “teaching ratings were low
    and not improving. Also, his research was not progressing in a manner commensurate with rank.”
    Dr. Wigal, who served on the committee, stated that during the reappointment discussions,
    the committee “engaged in a very unusual discussion and undertook an unusual process.” She
    stated that the addition of Dr. Mike Jones to the Committee was unusual because that made the
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    total number of members of the Committee six, as opposed to five in previous years. During the
    meeting, Dr. Wigal said that there was “negative discussion” about Plaintiff’s complaint with the
    Office of Equity and Diversity. Dr. Mike Jones evidently referred to that as “suing the university”
    and that they “should not want someone at [the University] who had sued it in the past” because
    “that does not look good.” Dr. Mike Jones evidently brought it up again later in the meeting and
    said to Dr. Wigal, “what, do you have a lawsuit also?” Dr. Wigal stated that she thought Plaintiff
    met all requirements for reappointment and that it was unusual for a professor to be terminated
    prior to the end of a tenure track, “except in very unusual circumstances.”
    Dr. Owino notified Dean Pack on March 3, 2016, that he concurred in the committee’s
    recommendation.2 He noted that Plaintiff’s “student teaching evaluations are not improving, and
    recurring student complaints about the lack of timely feedback on homework assignments and
    exams make it evident that teaching is not his top priority.” Dean Pack informed Provost
    Ainsworth on March 7, 2016, that, based on his “independent evaluation of [Plaintiff’s] teaching,
    research, and service activities,” he concurred with the recommendation to not reappoint Plaintiff
    for the 2016–2017 academic year. Dean Pack noted that it was “especially troubling to find that
    course assignments are not returned to students in a timely manner or not returned at all for some
    of the courses he taught.” He further stated that “[t]his deficiency was pointed out in the past[.]”
    On the same day, Dean Pack notified Plaintiff of his decision.
    On March 21, 2016, Provost Ainsworth sent a memo to Plaintiff informing him that he was
    not recommending reappointment to Chancellor Angle. He wrote that “a lack of evidence
    indicating that [Plaintiff had] appropriately addressed classroom and student concerns” formed the
    basis of this decision. Provost Ainsworth again, on April 5, 2016, informed Plaintiff that his
    2
    Dean Pack began serving as Dean of the College in January 2016.
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    terminal appointment would be the 2016–2017 academic year. Dean Pack, “[b]ased on the volume
    and magnitude of issues with [Plaintiff’s] teaching,” recommended to Provost Ainsworth that
    Plaintiff not teach any classes during his terminal year.
    II. Procedural History
    Plaintiff filed his complaint on March 15, 2017. On May 2, 2019, the University filed a
    Motion to Compel because Plaintiff had failed to respond to discovery requests served over a year
    earlier. The University filed a Motion to Dismiss after Plaintiff refused to attend a deposition. On
    August 20, 2019, the University filed a Motion for Summary Judgment, providing declarations
    and exhibits. Plaintiff responded, relying on his own declaration and that of Dr. Cecilia Wigal.
    On October 28, 2019, the district court entered an Order granting summary judgment to
    the University and denying as moot the University’s Motion to Dismiss. Plaintiff timely appealed.
    III. Application of Law to Facts
    We review de novo a district court’s grant of summary judgment and view the evidence in
    the light most favorable to the non-moving party. Ayissi-Etoh v. Fannie Mae, 
    712 F.3d 572
    , 576
    (6th Cir. 2013). Plaintiff claims that he was subject to a hostile work environment due to sexual
    harassment and that the University retaliated against him for complaining of sexual harassment,
    both in violation of Title VII of the Civil Rights Act of 1964, 
    42 U.S.C. § 2000
     et seq.
    A. Hostile Work Environment Claim
    Plaintiff claims that he was subjected to a hostile work environment in violation of Title
    VII. To establish a prima facie hostile work environment claim, a plaintiff must show that:
    (1) he or she was a member of a protected class; (2) he or she was subjected to
    unwelcome sexual harassment; (3) the harassment complained of was based on sex;
    (4) the charged sexual harassment created a hostile work environment; and (5) the
    employer is liable.
    Smith v. Rock-Tenn Servs., Inc., 
    813 F.3d 298
    , 307 (6th Cir. 2016).
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    A reasonable factfinder could find that the “Dr. Penis” moniker on the mislabeled package
    was based on Plaintiff’s gender. The student-employee who mislabeled the package stated that
    there was no sexual connotation whatsoever. In fact, Samuel found that this incident violated the
    University Code of Conduct and the University’s Policy on Sexual Harassment. Fletcher was
    required to undergo sexual harassment training.
    Plaintiff cannot, however, show that the act created a hostile work environment. A hostile
    work environment “is permeated with discriminatory intimidation, ridicule, and insult that is
    sufficiently severe or pervasive to alter the conditions of the victim’s employment and create an
    abusive working environment.’” Smith, 813 F.3d at 309 (quoting Harris v. Forklift Systems, Inc.,
    
    510 U.S. 17
    , 21 (1993)). We must consider “all the circumstances” which “may include the
    frequency of the discriminatory conduct; its severity; whether it is physically threatening or
    humiliating, or a mere offensive utterance; and whether it unreasonably interferes with an
    employee’s work performance.” Harris, 
    510 U.S. at 23
    .
    Plaintiff maintains that an isolated act of discrimination can create a hostile work
    environment. The cases plaintiff cites, however, remind us that for a lone incident to do so, it must
    be “extremely serious[.]” Faragher v. City of Boca Raton, 
    524 U.S. 775
    , 788 (1998); see Adams
    v. Austal, U.S.A., L.L.C., 
    754 F.3d 1240
    , 1254 (11th Cir. 2014) (supervisor carving racial slur into
    a wall at the workplace); Ayissi-Etoh, 712 F.3d at 577 (use of an “offensive racial epithet” by a
    supervisor while yelling at a subordinate); Rodgers v. Western-Southern Life Ins. Co., 
    12 F.3d 668
    ,
    675 (7th Cir. 1993) (use of the “n-word” by a supervisor in the presence of subordinates). The
    single incident here is not “extremely serious” such that it created a hostile work environment. To
    the extent Plaintiff briefly argues that the Wi-Fi network named “Dr. P. Ennis”3 in the Hamilton
    Plaintiff’s briefings consistently refer to the Wi-Fi network as “Dr. Penis,” but his declaration indicates the
    3
    network was named “Dr. P. Ennis.”
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    County Business Development Center is further evidence to support his claim, he admits that the
    Business Development Center is not owned or operated by the University. Plaintiff also does not
    provide evidence of when the Wi-Fi network was created. He states only that he learned of it in
    August 2016 and that it may have been created by an employee of the University, but that the
    network was tied to the employee’s private business which Plaintiff claims he maintained while
    employed by the University.
    Because Plaintiff cannot show that the harassment complained of created a hostile work
    environment, the University is entitled to summary judgment on this claim.
    B. Retaliation Claim
    Plaintiff also alleges that the University retaliated against him for complaining of sexual
    harassment, also in violation of Title VII.4 “A plaintiff ‘may prove unlawful retaliation by
    presenting direct evidence of such retaliation or by establishing a prima facie case under the
    McDonnell Douglas framework.’” Taylor v. Geithner, 
    703 F.3d 328
    , 336 (6th Cir. 2013) (quoting
    Abbott v. Crown Motor Co., 
    348 F.3d 537
    , 542 (6th Cir. 2003)). Plaintiff attempts the latter, and
    thus must demonstrate that:
    (1) he engaged in activity protected by Title VII; (2) his exercise of such protected
    activity was known by the defendant; (3) thereafter, the defendant took an action
    that was materially adverse to the plaintiff; and (4) a causal connection existed
    between the protected activity and the materially adverse action.
    Laster v. City of Kalamazoo, 
    746 F.3d 714
    , 730 (6th Cir. 2014) (quoting Jones v. Johanns, 264 F.
    App’x 463, 466 (6th Cir. 2007)) (internal quotation marks omitted). We have consistently held
    that this is not an onerous burden. See, e.g., Mickey v. Zeidler Tool and Die Co., 
    516 F.3d 516
    ,
    523 (6th Cir. 2008) (quoting Nguyen v. City of Cleveland, 
    229 F.3d 559
    , 563 (6th Cir. 2000)).
    4
    “It shall be an unlawful employment practice for an employer to discriminate against any of his employees
    . . . because he has opposed any practice made . . . unlawful . . . by this subchapter.” 42 U.S.C. § 2000e-3(a).
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    If the plaintiff establishes a prima facie case of retaliation, the burden of production shifts
    to the defendant to articulate a legitimate, non-retaliatory reason for the materially adverse action.
    Redlin v. Grosse Pointe Pub. Sch. Sys., 
    921 F.3d 599
    , 613 (6th Cir. 2009). If the defendant does
    so, the burden shifts back to the plaintiff to show the reasons given were a pretext for retaliation.
    
    Id. at 614
    .
    The parties do not dispute that Plaintiff engaged in protected activity when he complained
    to the Office of Equity and Diversity on April 22, 2015, about the mislabeled package. The parties
    disagree, however, on the protected nature of Plaintiff’s alleged complaints of gender
    discrimination concerning Dr. Wigal.
    A plaintiff’s objection to an employment practice is protected if the plaintiff’s supervisors
    “should have reasonably understood” that the plaintiff was making a complaint of discrimination.
    See Mumm v. Charter Twp. of Superior, 727 F. App’x 110, 112 (6th Cir. 2018) (quoting Braun v.
    Ultimate Jetcharters, LLC, 
    828 F.3d 501
    , 512 (6th Cir. 2016)). The “complaint must allege
    unlawful discrimination rather than general unfairness.” 
    Id.
     A complaint need not be “‘lodged
    with absolute formality, clarity, or precision,” but a “vague charge of discrimination is
    insufficient[.]’” 
    Id.
     at 112‒13 (quoting Yazdian v. ConMed Endoscopic Techs., Inc., 
    793 F.3d 634
    ,
    645 (6th Cir. 2015); Booker v. Brown & Williamson Tobacco Co., 
    879 F.2d 1304
    , 1313 (6th Cir.
    1989)).
    The evidence shows that none of Plaintiff’s superiors should have reasonably understood
    that he was complaining of gender discrimination against Dr. Wigal regarding the elimination of
    the general engineering program. The excerpt from the interview between Samuel and Plaintiff,
    quoted above, shows that Plaintiff expressed concerns about the process by which the College was
    handling the potential elimination of the program. Indeed, Plaintiff stated: “What I’m more
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    Case No. 19-6334, Ennis v. State of Tennessee dba University of Tennessee
    concerned about is the appropriate process[es] weren’t involved.” Samuel stated that Plaintiff
    never mentioned in his multiple interviews that he thought the University was discriminating
    against Dr. Wigal because of her gender. Additionally, in response to Dr. Wigal’s complaint,
    Samuel interviewed five potential witnesses. None of them named Plaintiff as a corroborating
    witness, including Dr. Wigal. Plaintiff states that he specifically discussed “the discrimination and
    retaliation [he] felt was being directed at Dr. Wigal” but does not indicate to whom he spoke. At
    most, Plaintiff made a charge of “general unfairness” in the proposed elimination of the program.
    See Mumm, 727 F. App’x at 112. Accordingly, we will consider only the alleged retaliatory acts
    after Plaintiff complained of the mislabeled package.
    Plaintiff made the complaint regarding the mislabeled package on April 22, 2015. The
    University knew of this complaint, as Plaintiff complained through an email to Samuel. Plaintiff
    maintains the University took several retaliatory acts against him following this April 2015
    complaint. He asserts that (1) he was delayed access to start-up funds, initially denied required
    equipment, and was refused a computing platform; (2) he received his class schedule for the Fall
    2015 semester one week before the semester began; (3) Dr. Owino harassed Plaintiff’s son and
    accused him of stealing credit card information; (4) Dr. Owino “removed” Plaintiff as an advisor
    to a student program; (5) Dr. Owino asked Human Resources to investigate E&G consulting
    equipment and Plaintiff’s relationship with the firm and the Fall 2014 workshop; (6) the Office of
    Audit and Compliance conducted an audit into Plaintiff’s teaching performance; and (7) the Rank
    and Tenure Committee’s vote against Plaintiff’s reappointment.
    The issue about the start-up funds was discussed in an August 26, 2015 meeting among
    Plaintiff, Interim Dean Alp, and Fletcher. Both Interim Dean Alp and Dr. Owino stated that they
    understood that Plaintiff was to receive $15,000. Plaintiff, however, produced a letter indicating
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    Case No. 19-6334, Ennis v. State of Tennessee dba University of Tennessee
    that he was entitled to $35,000. Interim Dean Alp and Dr. Owino noted that this letter was not in
    the files of the College or the Office of Faculty Records, but that after conversations with campus
    leadership, they awarded Plaintiff the full $35,000.
    As for Plaintiff’s class schedule, Alp stated that scheduling was not up to her as the Interim
    Dean, but that it is under the Department Head, Dr. Owino. Both Interim Dean Alp and Dr. Owino
    noted that the Fall 2015 schedule presented unusual difficulties because one professor announced
    that she was taking a one-year leave of absence for the 2015–2016 academic year. Another
    professor was diagnosed with an illness that required extended medical leave. Because of this, the
    Department was having trouble determining how to cover the Chemical Engineering courses with
    one full-time professor, Plaintiff, and one visiting professor, Dr. Harris, who was promoted to full-
    time professor because of these problems. Interim Dean Alp and Dr. Owino stated that Plaintiff
    was assigned one additional short course shortly before the semester, but other than that, Plaintiff
    and all other faculty were aware of their schedules several months earlier. Dr. Owino noted that
    he prefers to schedule classes as far in advance as possible, but that he has on “several occasions
    had to add courses to faculty members’ schedules at the last minute in order to ensure coverage.”
    He added that he has “personally taught courses with only a few days’ notice when circumstances
    require it.”
    Plaintiff maintains that in late April and early May 2015, Dr. Owino harassed his son, a
    student at the time, regarding a purchase charged to a credit card of the University. Dr. Owino,
    however, did not learn of Plaintiff’s retaliation complaint against him until August 26, 2015. And
    it was not until September 8, 2015, when Samuel interviewed Dr. Owino, that Dr. Owino stated
    that he learned of Plaintiff’s complaint against Fletcher.
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    Case No. 19-6334, Ennis v. State of Tennessee dba University of Tennessee
    Plaintiff alleges that Dr. Owino retaliated against him by “removing” him from advisor of
    “Chem-e-Car,” an extracurricular activity sponsored by the Department. Owino stated that in the
    summer of 2015, he simply asked Dr. Harris if he was interested in serving as the Chem-e-Car
    advisor because he was new to the faculty. He noted that he never spoke to Plaintiff about this,
    but that Plaintiff remained the advisor. In any event, it appears that Dr. Owino approached Dr.
    Harris about this opportunity before knowing of Plaintiff’s complaints, and Plaintiff remained the
    Chem-e-Car advisor.
    Plaintiff says that Dr. Owino requested the Human Resources Department to investigate
    his E&G activities and the Fall 2014 workshop. He alleges that Dr. Owino did so in both 2014
    and 2015. Dr. Owino was concerned with Plaintiff’s role with E&G after the workshop because
    of the lack of involvement by the University in planning the event, and Plaintiff marketing the
    workshop as a joint event between the University and E&G. Dr. Owino asked the Conflict of
    Interest Committee to investigate Plaintiff’s relationship with the firm, and the committee
    identified a conflict of interest and clarified expectations about any future workshops. This appears
    to have occurred during the Fall 2014 semester, before Plaintiff ever filed his initial complaint.
    Regarding the 2015 investigation, Dr. Owino noticed on November 10, 2015, that someone was
    in Plaintiff’s laboratory. This concerned him because Plaintiff and his students were out of town.
    He found one of Plaintiff’s sons in the laboratory, who said he was conducting an experiment for
    Plaintiff. In an email to Plaintiff that same day, Dr. Owino expressed concerns that his son was
    not a student at the University and raised liability concerns if Plaintiff’s son or another
    unauthorized person were injured while on University premises. He also noted that Plaintiff had
    yet to complete loan agreement forms for the equipment.
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    Case No. 19-6334, Ennis v. State of Tennessee dba University of Tennessee
    The Office of Audit and Compliance conducted an audit into Plaintiff’s teaching
    performance following poor student reviews about Plaintiff’s teaching. Although the date of this
    request is not clear, it appears to have been made in relation to Dr. Owino’s November 21, 2014
    review of Plaintiff’s student evaluations.5 He stated he “ordinarily” requests the Office of Audit
    and Compliance to elicit feedback from students following low teaching evaluations. Indeed,
    following the audit request, on December 1, 2014, Dr. Owino concurred with the Rank and Tenure
    Committee’s recommendation to reappoint Plaintiff for the 2015–2016 academic year.
    Lastly, Plaintiff maintains that the University retaliated against him by the Rank and
    Tenure Committee voting against his reappointment for the 2016–2017 academic year. The
    Committee’s vote against Plaintiff’s reappointment—which led to his termination—is sufficient
    to establish a materially adverse action. Plaintiff has thus shown that he engaged in a protected
    activity that the University knew of, and has established a materially adverse action. Plaintiff,
    however, fails to make a prima facie case of retaliation because he cannot establish causation.
    “The Supreme Court has made clear that Title VII retaliation claims require traditional but-
    for causation” such that a “plaintiff must show ‘that the harm would not have occurred’ in the
    absence of—that is, but for—the defendant’s conduct.” Redlin, 921 F.3d at 614‒15 (quoting Univ.
    of Tex. Sw. Med. Ctr. v. Nassar, 
    570 U.S. 338
    , 346‒47 (2013)). “Thus, a defendant will be entitled
    to summary judgment ‘so long as nondiscriminatory factors were sufficient to justify its ultimate
    decision.’” 
    Id. at 615
     (quoting Seoane-Vasquez v. Ohio State Univ., 577 F. App’x 418, 428 (6th
    Cir. 2014)) (alterations omitted).
    5
    The Office of Audit and Compliance, however, appears to not have sent Dr. Owino student feedback from
    the audit until February 29, 2016, and March 7, 2016. This occurred after the Rank and Tenure Committee voted
    against reappointing Plaintiff on February 25, 2016, but the first feedback from the audit was sent to Dr. Owino before
    he informed Dean Pack on March 3, 2016, that he concurred in the Committee’s decision. Thus, part of the audit
    feedback may well have informed Dr. Owino’s decision to concur. And in any event, the Rank and Tenure Committee
    and other decision-makers were aware that Plaintiff had received poor student evaluations prior to those found by the
    audit.
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    Case No. 19-6334, Ennis v. State of Tennessee dba University of Tennessee
    The vote against reappointing Plaintiff occurred in February 2016, about 10 months after
    Plaintiff’s initial complaint and six months after his retaliation complaint. 
    Id. at 615
     (“Where some
    time elapses between when the employer learns of a protected activity and the subsequent adverse
    employment action, the employee must couple temporal proximity with other evidence of
    retaliatory conduct to establish causality.”) (alterations omitted). Dr. Wigal’s mention of the
    unusual structure of the Rank and Tenure Committee and the conversations about Plaintiff’s
    complaint indicate that Plaintiff’s protected activity may have been a motivating factor in at least
    one vote against reappointing Plaintiff for the 2016–2017 academic year. But the University first
    observed deficiencies in Plaintiff’s teaching performance in the Spring 2014 semester. The
    University communicated these concerns to Plaintiff when it reappointed him to the 2015–2016
    academic year. In denying Plaintiff early tenure, Dr. Owino noted that, while some of these
    deficiencies improved during the Fall 2014 semester, an improvement of one semester did not
    suffice to grant tenure. The bases for denying Plaintiff promotion to Full Professor consisted of
    similar reasons, and that occurred in March 2015, before Plaintiff filed his initial complaint. In
    addition, the improvements in Plaintiff’s teaching evaluations did not remain, as Dr. Owino noted
    that Plaintiff’s evaluations had again declined—and had worsened—when Dr. Owino
    recommended against reappointing Plaintiff for the 2016–2017 academic year. Because Plaintiff
    cannot show that but for his complaints about the mislabeled package and retaliation, he would
    have been reappointed for the 2016–2017 academic year, he fails to establish a prima facie case
    of retaliation.
    After the Rank and Tenure Committee and Dr. Owino recommended against reappointing
    Plaintiff, Dean Pack conducted an “independent review” of Plaintiff’s record. In an email to
    Plaintiff informing him of this recommendation, Dean Pack stated that “[i]t is especially troubling
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    Case No. 19-6334, Ennis v. State of Tennessee dba University of Tennessee
    to find that course assignments are not returned to the students in a timely manner or not returned
    at all for some of the courses [Plaintiff] taught” because “[t]his deficiency was pointed out in the
    past as an area that needed to be rectified.” Dean Pack also listed numerous other concerns that
    he had about Plaintiff’s performance in his affidavit for this case, which included several
    complaints from students about Plaintiff’s teaching, Plaintiff’s violations of FERPA, and
    Plaintiff’s attempts to persuade Dean Pack to support a project behind the backs of Chancellor
    Angle and Interim Dean Alp, who had decided not to pursue the project. After Dean Pack
    concluded his review, Provost Ainsworth “careful[ly] evaluat[ed]” Plaintiff’s record and
    recommended that the University not re-hire Plaintiff because of “a lack of evidence indicating
    that [Plaintiff had] appropriately addressed classroom and student concerns.” Plaintiff does not
    assert that Dean Pack or Provost Ainsworth harbored any discriminatory animus against him. Only
    after these independent reviews had been conducted did Chancellor Angle conduct his own review
    and decide that the University would not reappoint Plaintiff.
    Plaintiff also does not claim that Chancellor Angle harbored any animus against him. And
    although he claims the recommendations of the Rank and Tenure Committee and Dr. Owino
    influenced Chancellor Angle’s decision, he produces no evidence that Chancellor Angle’s decision
    was not entirely independent, based on the entire record before him, and entirely justified by
    various reviews independent of the allegedly biased decisions of the Rank and Tenure Committee
    and Dr. Owino. The University is thus entitled to summary judgment on this claim as well.
    IV. Conclusion
    For the foregoing reasons, we AFFIRM the district court.
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