mark-filla-v-norfolk-southern-railway-company-a-virginia-corporation , 336 F.3d 806 ( 2003 )
Knudson v. Systems Painters, Inc. , 634 F.3d 968 ( 2011 )
Duane Carlson v. Arrowhead Concrete Works, Inc. , 445 F.3d 1046 ( 2006 )