Lupine-Andy, I've seen pictures of people dressed like that on some strange websites.... (Only kidding, mate!)
Seriously, though, I'm almost fanatical about wearing nothing but olives, browns, greens and fawns when I'm out walking or backpacking, because I want to blend in with the countryside and not stand out in bright colours. Even my sleeping bag is olive coloured because I don't want any farmer spotting it from half a mile away when I've got it hanging up or laid out to air in the morning.
But don't go thinking I'm Rambo the macho wannabe soldier. I think we've all seen at least one of them in the hills, haven't we, complete with all the gear even down to the camo stick markings on the face.
I'm not so young any more (don't think I ever was, actually, I was born old) and I am very much aware of how I'm possibly limiting my chances of being found and rescued if I got into serious problems, but then again I like to think that if I've avoided trouble for all these years, I must be doing things right. And if Joe Simpson could spend days crawling off a remote mountain with a shattered leg, then I'll have a go, too.