I was roasting some cauliflower and squash and after about 10 minutes or so went to check the oven and saw something on fire on the oven floor. I took out the trays and saw it was our oven thermometer that must have fallen on the heating element. The outside rubber (?!) was on fire and half turned to dust. I am now wondering if the smoke from that is A) toxic or bad and B) now a part of my veggies. I would list the brand but I can't read it. It is one thing to poison myself but quite another to poison friends and loved ones who would be eating this food tonight.