[quote=@HaleyTheRandom]
If I microwave something and there's still time left on the clock thing, I [i]have[/i] to clear off the time. Otherwise it'll bug the living crap out of me and be all I can think about until I'm able to clear it off or someone microwaves something else. 
[/quote]

You could hit the start button and let it run to zero with nothing inside. But, you would be bugged you with it saying DONE DONE DONE