I think it was last year when we had a similar case over here in Finland. Some guy was checking if there was fuel left some sort of a fuel tank (not a tank truck) and figured it was a good idea to use a lighter to illuminate it. He survived it by only burning some of his hair, eyebrows and facial hair, nothing permanent though. Apparently the tank was quite empty because it didn't start a fire, just enough fumes left to scare the crap out of the guy.