the emergency services have to be careful,
Not talking about them. If I was involved there’d have been a conversation like this, after everyone got off the bus.
“Right. Who said there’s a smoking bag? You. Whose bag is smoking? His. OK, you, why is your bag smoking? It’s one of those electronic ciggy things? Show me? OK, ****’s sake, everyone back on the bus. Except the guy who started it, he’s walking”
It’s a bit like the time we found an unattended briefcase in the bank I used to work in, and everyone was like ZOMG BOMB and I was all like, whose briefcase is this??? and this guy said it was totally his, and it totally was.