I'm now trying to decide which part of my day was grosser:
Playing with Moon Sand (a combo of playdough and sand) and helping my daughter clean up the stuff off the floor, only to discover a stray turd on the floor in the middle of all of it. Must have just slipped out...darn things!
Walking in on my daughter in the bathroom after she had just pooped in the toilet, to find her using toilet paper like a wash cloth and the toilet like a sink...as she washed her face. (Just in case you care, the poop was still floating in the toilet as she washed up.)