It was a bit late to set the parking brake.
There are really two stories going on in the following video. The first is that of the firefighters attempting to put out a burning Mercedes and in turn accidentally making it into what could have been a much bigger problem. The other is that the people watching didn't really have much of a reaction, just a couple of little chuckles and moving to get a better view. It almost seems like this is a regular thing for them to see, which we hope for their sake it isn't.
We don't have much to go on to figure out what country this is, but if you recognize the language, let us know in the comments.