My mom asked me what I wanted for dinner. I said, 'I don't know.' She said, 'You're the worst kid I've ever had.'

At school, the teacher asked me to do something. I said, 'I don't know.' He said, 'You're the worst student I've ever had.'

My friend asked me what my favorite game was. I said, 'I don't know.' He said, 'You're the worst friend in the world.'