My friend asked me what time the movie started. I said, 'I don't know.' He said, 'You're the worst friend ever.'

At dinner, my mom asked me what I wanted to eat. I said, 'I don't know.' She said, 'You're not even alive.'

My teacher asked me to solve a math problem. I said, 'I don't know.' He said, 'You're the worst student I've ever had.'