Another one I remember from when I was a kid. My parents had bought me a old metal frame 20 long with an incandescent hood and a Rosehair tarantula. Our cat liked to lay on the warm lid and I must not have secured the lid well enough, because one day I came home from school and the lid was collapsed into the tank and the spider was on the loose. Never found the spider but we did find a molt a few years later when we were moving.