They’d tried all the obvious things, of course. Squint-Nose McGee had learned the hard way that the doors closed whip-fast and were made to withstand substantial impacts at speed. He’d been Stan, before.

Big Al, tough, with scars all over his face and one ear mostly missing, had suggested a full-frontal assault. No-one heard, though, him standing only hip high to most of the other bruisers and biters, and they’d spotted a different opportunity.