"You're nine," countered Gretel. "How would you know? When you get to my age you'll understand these things a lot better."
"That might be so," said Bruno, who knew that he was younger but didn't agree that that made him less likely to be right.
'When I make mistakes I get punished,' insisted Bruno, irritated by the fact that the rules that always apply to children never seem to apply to grown-ups at all.