How is one an accidental matchmaker? My brother has set up I think 5 couples who've gotten married. He does it with full intent. I think he tells them "You WILL go out with her!" and the couple is then scared into each other's arms. He's never tried to fix me up, though...hmmm, that doesn't say much about me...
It's too late to go into any details (I'm about 30 minutes from going to bed), but I've had some "fix-up" dates that were pretty interesting to say the least...
When I say "accidental" I mean, I would merely introduce two people of the opposite sex, and serious sparks would fly, and it's been like that for the last twenty years or so. One couple got engaged only after 6 weeks of dating.