A couple of weeks ago there was a serious fire in some utilities access tunnels in the street where I work. No-one was injured and buildings are all untouched but work has been going on ever since to repair the damage in the tunnels. Several times I've noticed a small van parked in the street; inside are four guys crammed in at the front peering out at the rest of the world. On the side of the van is written 'CONFINED SPACE RESCUE AND SAFETY TEAM'. Maybe they are practising being in confined spaces?

That is so funny, arnie! I hadn't even known about confined space rescue teams before seeing this, but there's a lot about it on the Internet. There is even a Wikipedia page about it.