If the boots are held on with a padlock, cut the lock off and then put a new padlock on it when you put it on the admin's car.
The smiley faces are removeable. If he damages your car, return the favor!
Brake fluid is too slow so don't even bother. If you want to be really, really mean some hydrochloric acid or perhaps some paint stripper would do the trick! If you wanted it to be more portable (and not as dangerous) I heard that shaving cream also does wonders to paint. Take an egg, scrape a pin hole in both ends. Blow the white and the yolk out of the egg. Get one of those big plastic shot needles (the kind with a plastic needle) and fill the egg up with the shaving cream! Put some tape or something on the end. Wipe them clean, put them back in the crate and when you get to school tag his car!
I got out of it the easy way. The school I was at would issue tickets. You needed to pay them before you could get your diploma. Well, I had about $2000 in parking tickets and I wasn't going to give the school
anything. The tickets wouldn't go on your driving record so I changed school districts. I liked the new school a lot more, and all of the sudden, the lost attendance credit, the parking tickets and everything bad disappeared!
