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 grandparents used to store cereal in the oven. As a kid I never understood, but it was just something weird cpsince I never cooked. Now I’m horrified that anyone would do that but suspect they bought it just for our visit and had nowhere to put the huge quantities of food they’d need.
Picture the groceries for a nice, quiet elderly couple. Now picture the groceries for a family with four boys eating everything in sight …. Yeah, our visits must have been the apocalypse for their budget, based on groceries alone