LOL thats some funny $hit. I never got suspended but we would draw'em on our firends stuff without them knowing and we'ed se how long it would be on there until someone noticed or a teacher saw it. I did get caught once. I drew a nice big one on my best friends auto cad drawings and our spanish teachers saw us laughing and walked over and saw the picture. She didn't laugh, but all she told us was " I do not care what you 2 do in your free time but don't bring it into my class room." She said that $hit like we were a couple of faggles.
Shoot i had one buddy who was probably the best artist i have seen. As a final in one of his classes he drew a picture of the Seattle skyline and hid a bunch if dicks in the drawing. he got an A and the teacher put it up in her room to display what she was looking for. Funny as hell every time you walked into the room.