I was cleaning a stove once and the whole top panel with the clock, timers and various controls slid out of line. I was really worried, told the homeowner right away and she said it always does that and not to worry. I have broken and replaced two glass coffee carafes-one I mistakenly put on a gas burner and melted the handle, and I have no idea how a piece of glass chipped from the spout of the other.