I'll leave if there's someone else in the house. If I'm by myself, my ass is staying home or turning off the oven. There are too many things that can go wrong and I live off a 2 lane highway with a lot of barely seen side roads, deep ditches, no barriers, deer, and idiots galore speeding through that sucker when they really shouldn't be. Leaving the house with the oven on is just asking for one of the LifeEvac accidents to turn a fifteen minute errand into hours.