In Scary Movie 2
To me, his dinner scene (and just his Hanson in general) was one of the best comical scenes I think I've ever seen done on film. I remember literally laughing so hard right out loud in the theatre that people started staring back. Whether he improvised a litte bit of that skit, or even wrote some of it I dunno, but to me there's not too many who could pull a scene/character off like that.
"I don't know what the hell that is.. but I'll lick it anyway!"