I've met quite a few bikers in my life (Not kilted back then) and I've yet to have a bad experience. It's been my experience that are mostly good people if you treat them with the same respect you want. And, if you ever want to get in a nice long conversation with a biker, compliment his bike. I don't do this to impress a biker, but they have some really nice pieces of iron, most of them customized by themselves, and involving long hours of hard work