Being tied to the post was uncomfortable but not as uncomfortable as the big axe in the Policeman's hand made Kevin feel.

When they'd been warned in Assembly that children who stuck their heads out of moving trains risked getting them knocked off, most had assumed the Policeman was talking about accidents.

His friends on the school trip had dared him to test the truth of the warning and, when the teacher had caught him, he'd proudly shown off that nothing bad had happened.

"You heard the warning as well as anyone else." His teacher chastised him. "You'll be made an example of in Assembly tomorrow then hopefully others might learn to do what they're told!"