When I was in college, one of the kids I knew lived off-campus, in a house that had been renovated over the summer. During the renovations, the student who had lived there lost their snake - an extremely large boa constrictor. It crawled into the walls, and she thought it was gone for good. The student I knew hosted a party, and some kids stayed the night, sleeping on the couch and in sleeping bags on the floor. They were woken by an ear-splitting shriek. The snake had found a way out of the walls, and crawled into the sleeping bag with one of the girls sleeping over.