Yeah it is usually done as a precaution, but I was just wondering if there was something more serious going on. Yeah, its not surprising to me either, hearing that, its just making alarm bells go off in my head because well, swelling can put a lot of pressure on the brain if it goes unchecked so yeah, that's pretty serious, especially if there's nothing to relieve it.
... ... ... I'm just going to cringe and make a mental note to avoid idiots in control of large trucks... seriously what was that driver thinking? But being hit again would not have helped at all, plus failing safety equipment makes it even worse... At least he seems to be in a reasonably good state, all things considered.
And yeah, I can see what you were doing, and I appreciate the concern :)
EDIT: Oh god I VMed myself again and only just noticed -_-