Okay, so this one's a bit funny.
A long time ago in the middle school I went to, we used to fuck with this teacher named Ms. Bade. I never had her class, but she is a real asshole.
Anyway, every day me and about 4 other friends would go to her classroom door at P.E. and knock on it and run away. It was really fun. So, one day, when we did it, I stopped my friend and told him to look through the window. He did, and he cringed and looked away. He said "Look for yourself..." I looked in the window, and couldn't believe my eyes. She was masturbating with a purple dildo watching gay porn. I told a lot of other people to do it, and then we all knocked on the door and she fell off of her chair. It was hilarious and I will never forget it.