Okay, look man, disclaimer, I was 16 at the time. I put paper towels inside a hot (475f 246c) oven once because a frozen pizza had fell apart inside it and I was trying to clean it up. Well, you know what happens when paper towels are exposed to temperatures that high? They spontaneously ignite and catch fire. Thankfully the inside of ovens aren’t flammable so nothing burnt except more of the pizza and the paper towels I put in there… Still, very stupid decision and one I will absolutely not make again. I have never put paper towels near anything high temperature since.