I have to agree with Gen on this one, sometimes one must open themselves up to the possibilities for something to happen before it will. If one makes a conscious effort to not get involved with x people they won't.
What I find annoying is how some people (mostly women ime) make a decision to not get involved with say, accountants, and if they meet a fantastic guy, perfect in everyway, is adorable to them, then they find out he's an accountant, they turn and walk away......This differs from genie's views in so much that this hobby is a special circumstance and that she isn't classifying one particular type of guy.
What bugs me to no end is how some women openly state that they will not get involved in any way shape or form with men who are not 6-2 3.2 yrs older, 220 lbs and have a full head of hair at 45. (even if they are 4-8, 30 lbs overweight, and boobs that sag to their waistline). I was on lavalife chat once and pm'd a woman and she replied with: sorry, I only date men with a full head of hair. I replied: good luck finding that at 46 but that's ok, I only date women without saggy breasts but at 46, that's kind of hard to find....She replied: that was kind of harsh.....