I’ve seen a few people put their delivered pizza in the oven after everyone grabs a piece to keep it warm. I’ve also seen a lot of those people forget the pizza is in there and either have to throw it out or only noticed after they preheated their oven.
My cousin kept bags of chips and pretzels in the oven, and got really mad at me for preheating the oven without checking it. It was 20 years ago and we still fight over who’s fault that was.