Always check the over before you Preheat

A few weeks ago I turned the oven on to preheat before I put the pizza in, it smelled funny and a little bit of smoke was coming out of the top. Lexi had put 2 of her dolls neatly on the oven rack and a pumpkin cany holder. They were all a little black on the bottoms so we all learned a valuable lesson of checking the oven before turning it on.