My husband leaving the dish sponge in the sink, or in a dish, pot or glass that has dirty water. UUGGHH!!! Drives me CRAZY!!! Just wring out the sponge, and put it on the sponge dish on the counter, will ya?! I know it's him, because though my daughter doesn't like to do dishes, she put the sponge where it belongs. OOOOOHHH!! The thought of it makes me mad! He was in the kitchen today. Let me see where the sponge is.... oh, okay, he's safe!