I just had a 10-minute "discussion" with my dad about ovens. Back me up here, peeps. Have you EVER heard of the "rule" that you "have" to leave the oven open while you use the broiler, lest risk setting your house on fire?? I have never ever heard of such a thing, have used many broilers many times, and I've certainly never started a fire in my oven. I have to assume this is something he learned in the '70s or something -- he's a little stubborn when it comes to change. I'm just curious if anyone has anything that backs up my dad's whackadooness!?