DUMB & DUMBER (1994)
Lloyd Christmas (Jim Carrey) does what any mature adult would do after finding out that his best friend Harry Dunne (Jeff Daniels) has lied to him in order to go on a date with the woman Lloyd is in love with: He secretly dumps a whole lot of laxatives into Harry’s drink before the big date. The plan works … sort of. And the result is one of the few examples of literal toilet humor in a movie that’s actually funny. That Jeff Daniels has range.