Tonight, I called Vicki over to me.
Vicki, what's on your head? Is that peanut butter? [swipe the stuff off her head] How did you get peanut butter on your head?
[sniff] Ohmigawd. That's poop!!! How did you get poop on your head???? [Rush to the bathroom] Who's poop is on your head?
I dunk her under the tap, wipe the poop off her head, and search the other's bums for fresh poop.
There was no poop. I sill don't know where it was from.