Using a self cleaning oven to clean pans

https://www.youtube.com/watch?v=MQqMxuy_vWM

The rings true to me.  

Once in the 1970s, my mother took dirty drip bowls from the top burners and put them in the self cleaning oven and they came clean.  I could see some ash where the dirt had been.

I think that today it would set off a smoke detector.  What happens when you burn organic material?  You get smoke, probably carbon monoxide, and possibly harmful chemicals.

Google tells me that a self cleaning oven gets to 800 to 900 degrees fahrenheit.  That seems like a dangerous amount of heat.