Our smoke detector tells me when the oven needs to be cleaned. So after baking that pizza dough bread last night, I thought I'd get a jump start and clean the oven. With our oven, it's a 4-hour process by default so it would be done before we retired for the night.
Just before I headed up to bed, I checked the oven. "...and what to my wondering eyes should appear but my cast iron skillet that I hold so dear."
I had left my 10" CI skillet in the oven for the cleaning cycle. I can attest, without fear of contradiction, the self-cleaning cycle is an excellent way to clean ALL THE SEASONING off your cookware if you want to re-season it or even if you don't.
I had left it in the oven last night after baking the bread. I'd used it to add some moisture to the oven for baking the bread.
I'm angry at myself for forgetting it in there. It was perfectly seasoned. I fried eggs in it all the time with no issues.
So now it's in the oven again, with a fresh coat of oil, baking a new seasoning layer.
"If you want to make an apple pie from scratch, you must first create the universe." -Carl Sagan