Another dumb story from "back in my day". When I was in college way back in 1976, me and my Best friend back then both had graduated early and had to live in the dorm the first year until we were 18. The dorm they made us stay in was 6 stories and had a crappy old elevator. Being a couple of goofy hacker types with nothing better to do on a weekend, we figured out how to get up on top of the elevator and to use the alternate control panel up there. We sat up there and could control it, people would get on, we could listen to them talk, stop the elevator between floors and they would get all scared, we would flicker the lights on and off, make it go to the wrong floor and so forth. Pretty fun stuff for a couple of nerds.
We got bored with that pretty quickly until, 4 gals form the girls floor decided they were going to camp out in there and set the Guinness record for the longest stay in an elevator. Some of the bigger dudes knew that we had hacked the elevator and asked us if we wanted to mess them up. Well... Of course. So we got on top and were listen to them yakkedy yak. Then we took it to between the 6th and 5th floors and locked it in place, then opened the upper doors on the 6th floor where a bunch of guys with big trash cans full of water were waiting.
We thought they were just going to douse them good. So we opened the ceiling trap door to the elevator with the lights off and those gals were screaming and squealing like crazy. Then come dude tossed a string of fire crackers in there followed by two giant Garbage cans of water right after that. Must have been at least a couple hundred gallons of water, who knows.
Then we set the thing to go to the first floor and jumped off. Waiting on the first floor where a bunch of people who were in on it with cameras to capture the whole things as the doors opened it was like the seas parting and flooding out as these poor drenched young ladies came floating out. Picture was on the front page of the school paper "Guinness Elevator Record Attempt Drenched" or something.
They called the cops and all that but no one squealed on us and it was all in good fun but to teach everyone a lesson they shut down the elevators for 3 weeks. Young people don't care, worth a climb of the stairs for all the fun!
BTW, I ended up marrying one of the gals on the elevator and yes I told her I was in on it, later. She loved that for some reason :)