Why is this even interesting? Some dude prank calls someone, and hilarity doesn't even ensue. Hell, when I was 18, a friend of mine had just thrown a bunch of trash in a yard that we all had to clean up, so when I got home around 3:00 a.m. I called his Dad. However, instead of tattling, I pretended I was one of his neighbors down the block. I said I had just seen a black pick-up trench my yard and if he might know who did it. At first he pretended he didn't know, so I went off on him on how I knew he had that truck in his driveway and that I would call the Police if I ever saw it near my property again. He apologized profusely (which was made funnier due to him being Greek with broken English.) Anyway, that got my friend grounded for a month. I only told him it was me several years after the fact. The point is to be creative and original. The "call someone and make them damage their hotel" prank is played out, unoriginal, and criminal if you get caught. Go rent a jerky boys cassette or something.