" Timmy put his head to the floor, nose to nose with Thumper. Thumper opened her eyes and gave the kid a lick. Timmy licked her back.
“Don’t lick the dog,” I said.
“She did it first.”
“Yeah, but she cleans her butt with that tongue. Presumably, you don’t.”
-Jason & 4yoa nephew Timmy "

― John Inman , Spirit