Most of my adult friends play war-games. Mostly because they're really interesting, from so many perspectives, including geeky ones. I have no trouble with geeky play-violence. I don't like viciousness. It's pretty easy to tell the difference when you see a group of people playing, and it's pretty easy to point it out. DS1 has already had a few lessons in this, and, interestingly, seems quite sensitive to the difference (crys at viciousness, even when it's pretty mild, gets interested in wargames)
