It's not so much about the intruders who walk on the floor before it's dry that bugs me. It's the fact that that jug of milk or bottle of ketchup or the dog etc. that knows you just cleaned the floor and proceeds to spill or vomit or whatever about a couple of hours after. It's like there is a vibration in the house that sends out a signal to something or someone to mess up the darn thing just as quickly as you had cleaned it.