When kids are quiet

Every parent knows: be wary of when your kids are quiet. Usually they are up to no good. For example:
I wonder who put the popcorn in the jewelry armoire?
Ahh, yes. That is why she was so quiet.
After a long quiet spell, to be met at the door this way can't be good.
Aaaaack! Oh, boy. It is at this point you forget how sweet they can be, and start having explicitly clear memories of the birthing pains.