S4·E12 My Dinner with Caitlin (a.k.a. Christmas 1999)
Aired December 21, 1999
Synopsis
Mike invites Caitlin to his Christmas party as his only guest but his plans at romance are spoiled when she arrives with a date. Paul finds John McEnroe's headband in the City Hall clothing drive box. James finds a second job as a suicide hotline operator. Stuart installs a chin-up bar in the mayor's office, which the mayor promptly injures himself on.