I was working the late shift at work and I was so tired when I got home. I put a frozen pizza in the oven and fell asleep on the couch. I woke up a couple hours later only to find my house filled with smoke and then I realized I forgot about the pizza in the oven! When I opened up the oven door there was a little 4" circle of "black" in there! You could have played hockey with the thing! I will never do that again!