There is plenty you can do.........
Go buy some limburger cheese and put it in the grill of his car and in the vents. Anywhere that it will circulate up in the car.......it will probably ruin it.
I heard this works but I have yet to try it (if anyone know, let me know) Make sure that it's gonna be a warm sunny day. Go buy a thing of shaving cream and freeze it. Let all the air out of the can after it is frozen and then somehow break open the can. Take the frozen shaving cream and put it in someones car. When it gets hot, the shaving cream is supposed to expand and go all over the car. It's supposed to almost fill the cab up.
Take a big bucket full of nasty shit and prop it up against his door and knock.
Put a chocolate bar in the dryer with his clothes. (Done recently
)
I got plenty more if you just give me a situation, like where do you wanna fuck with him at?