Yesterday, whilst using it alone (and by alone, I mean, nobody else actually in the stall with me) at the Strong Museum, I heard the following conversation:
Little girl, probably 5 years old, most likely with a January birthday: I've got you.
Little boy, probably 2 years old, most likely with a July birthday: Wift me up a wittle higher.
Girl: Okay. I'm lifting you.
Boy: Am I high enough? Can I go?
Girl: You're up. Pee. PEE!!!
(then I heard the sound)
Girl: OH MY GOODNESS!!! HE IS PEEING EVERYWHERE!!! IT'S ON THE TOILET!!! IT'S ON THE FLOOR!!! HE PEED EVERYWHERE!!! GROOOOOSSSSSS!!!
Boy, with a sorry voice: No I peed in the toilet.
Girl: Mommy, hurry up and get out of there, because we've got a mess to clean up over here.
I thought I recognized those little voices.