Manners for Grandma

Colin farted. "What do you say when you fart, Colin?" "Nuffink!"

He farted again. "What do you say when you fart, Colin?" "I awready said 'Nuffink'!"

A little while later my mom came over. I heard him fart from the next room. His Grandma said, "What do you say when you fart, Colin?"

"Oh, Excuse me."