well u could fork the school with plastic forks over night, saran wrap cars, fire alarms, get the sheep paint the numbers 1 2 and 4 on them the school will spend all day lookin for number 3, replace all the white board markers with chalk or visa versa, flood the school, if ur school has gates, u could stay home from school and lock up the gates and the end of school so no one can get out, let loos abunch of bouncy balls in teh school, let loose crickets, mice, and other cheap rodents, and creatures, jack up ur principles car and take off the tires, then place them buy his door, have a food fight, print out a bunch of offensive pictures and place them all over the school, wrap ur school in tons of caution tape like a murder scene i got tons of stuff u could do illsee if i can find the old website