Crothers v. La Salle Institute , 68 Ill. 2d 399 ( 1977 )
Perkaus v. Chicago Catholic High School Athletic League , 140 Ill. App. 3d 127 ( 1986 )
Ferentchak v. Village of Frankfort , 105 Ill. 2d 474 ( 1985 )
St. John v. R.R. Donnelley & Sons Co. , 54 Ill. 2d 271 ( 1973 )
Vuletich v. United States Steel Corp. , 117 Ill. 2d 417 ( 1987 )