Fill the pool with billions (or how ever many it takes) with Rubber duckies and then place more rubber duckies all over the school. I'm want to see if I can get it okayed because I don't want to be charged with breaking and entering but the way I see it, there's no real harm in rubber ducks
Besides its better than the idiot that pour syrup and other crap on the sidewalk and got it to freeze
Its fun. I go with my cousin and we usually end up getting drunk. His girlfriend, now fiance, would get so mad at us 'cause she'd had to take us back to the hotel rooms......