My oldest woke me up in the middle of the night because he had puked all over the floor and his bed. I cleaned it up and went back to bed. Then my 2 year old woke me up later this morning to let me know he was poopy. Turns out he had had a blowout in his diaper and had tracked poop all over the house. Took me an hour to clean it all up.
Seriously, I hate all the bodily fluids that are associated with being a parent of little kids. It grosses me out.