The Lessons of Burnt Toasts

I was feeling a bit peckish last night. So I thought I will toast two slices of bread for myself. I switched on the oven toaster and watched television while waiting. When I thought the bread was done, I went into the kitchen. I had a shock. There was so much smoke and my toast apparently went over from being toasted bread to being a candidate for winning the blackest burnt thing on earth.I must