Back when I was about 8 or so I knew someone who was an asshole, but he was the only other kid my age in the neighborhood so I put up with it so I'd have someone to play with.
One time I decided to try and drive him crazy by doing things like occasionally saying nonsensical phrases when his back was turned. He came from a very dysfunctional family so I'd take that into account by saying stuff like "mommy didn't, daddy do" (wow I just remembered that part..god damn was I ever evil!!). Then when he'd ask what I said I'd look dumbfounded, pretend I never said a word, and carry on as usual.
I don't know how if it worked or not but it sure confused the hell out of him.
