That got them into a fight. Henry shouted: "Mum! Dad! Peter is being mean to me! I wasn't being mean to him! It's not fair. You always tell me off when I am mean to him."
"I'm coming," shouted dad. "I do not believe you."
"How did this start?" asked mum. "I said: how did it start?"
Well, I don't know what would have happened if dad hadn't come in shouting "Supper!" After supper, everything was forgotten.
But I do think that the names in this story should have been swapped.