During his bath, Eliot boo-hoos because I won't let him drink his bathwater from the pitcher I use to rinse his hair.
Me: "Buddy, look at me with a straight face and tell me you haven't peed in this water. And then explain to me again why you want to drink it."
Eliot: "Bah bah doo doo mama blah blah be be be oh..."
Me: "Don't you take that tone with me, young man, or I'll brush your hair so that it dries funny!"