so I'm graduating next month, and we have spent all kinds of time trying to think of a senior prank, but have nothing good so far. It can't be anything too extreme, or the school would hold back our diplomas(they are real strict about stupid stuff for whatever reason). What ideas do you all have, or what have you done in the past? Last year me and a buncha buddies skipped the last day of school, and pulled up at the end of the day with a truck bed full of waterballoons. That was a ton of fun, but I have no intentions of stayin up til 4 am filling up 3000+ waterballoons again.lol. Any ideas?