Debbie had to go out, so she left a few cold pies in the oven. All the folks at home had to do was heat them at the right time. She’d put a tea towel over them. However a visitor, being helpful, turned on the oven at mealtime, and after a while, as everyone lazed around in the pool, the smell of something burning was inescapable. With tongs they pulled the smouldering tea towel out of the oven and tossed it in the sink. Notice to residents – please don’t burn down Debbie’s house.