Wow..
Class of 1990: took everything out of the Principal's office, including the light fixture, and put it all upside down; desk, chair, etc. was on the ceiling, lights were on the floor. Only thing that wasn't on switched was the light switch.
Class of 1991: Guy and a girl streaked (yes, naked) through the entire school on a Harley during lunch period. My school was/is 3 stories. bloody bike was so loud it almost cracked the lens in the school's planetarium.
My class (1992): took apart a 1971 Volkswagen bug (incidentally, 1971 was the year the school opened), and reassembled it in the class library with an automatic starter to turn on the car at 7:30am. The auto shop class took their time in taking it apart.
For me personally, there is a week that my school has called Senior Slob week. We can pretty much dress like slobs with shirts from late night cramming, fast food stains on them, stubble, messed up hair, etc. So I woke up, put on some shorts and a shirt, my bathrobe, and some of those huge bear claw slippers (actually, mine were Goofy), and went to school. Everyone thought I had on nothing and got called into the principal's office for it. They saw I was wearing a shirt and shorts, and sent me on my way. The rest of the students didn't. Eventually, someone tried to upstage me by coming in a bathtowel the following day, and the poor girl didn't have anything on underneath...
You know what happened next.
BL.