Running isn't bad for your joints if you do it correctly, not over do it and take care of yourself. Sitting around being inactive will cause worse joint pains in later life than running. I can go knock out 13-15 miles a weekend and feel fine.
And actually runners probably have the lowest douche quotient. IMO, there are two kinds of douche runners. The ones who are really really good and know it and act that way. Then there are the recreational people who want to post and talk about their 5K and their training plan and how they are going to carb load before the Race for the Cure and crap like that.
For the most part, most runners do their thing at their pace, cheer on other runners and then go drink beer and talk about a race and work and posters on message boards who call them douchnozzles.
ETA: It's actually when I can't run because of work or injuries or something is when I'm in a bad mood. Running helps balance me out.
This post was edited on 11/15 at 2:52 pm