Herb had been sent home from school for swearing at a teacher. They’d phoned his father, and his father had said “What the … Where did he learn that from?” Herb started walking home. Then he noticed something he’d never seen before. There was a sign as he walked past the gas works:
NO SMOKING. DANGER OF EXPLOSION.
Herb lit a cigarette and threw it over the fence. He carried on walking. That should teach the town a lesson.
Herb went back. That’s when it happened.