I remember that very early in my first marriage, Valerie left an egg boiling on the stove & forgot it. Ultimately, the pan having boiled dry & the heat maintained, it exploded. The ceiling of the kitchen of the upstairs flat at 9 Hayes Crescent, off Finchley Road at Temple Fortune, London NW11, was stained with dried egg yolk until we left 18 months later. Still is, 53 years later, for aught I know of the matter.

& we had to buy a new egg saucepan. The one I am still using, I believe!

≈M≈