Someone just started this thread on INTPC. I'm pretty sure I started one there awhile back on the same topic, but I don't think we've done it here yet. My apologies if we have and I forgot/failed at my search.
So, the thread topic: have you had any chance encounters with famous people? Here are a few of mine, all with very obscure musical acts:
This isn't going to mean much but to a handful of you, but when I was a teen I attended a backyard barbecue with the members of Camper Van Beethoven. They did an album with my friend's dad who is an extremely obscure musician that nobody has ever heard of except other musicians.
I also babysat for his younger kids (my friend was the oldest and she was a bit too wild to babysit) and once answered the phone to take a message for Henry Rollins.
And finally, I cowered beside an armchair and soaked up the self-absorbed genius that is Jello Biafra for an afternoon when he visited. I was only in 6th grade at the time but I recall him being very pleased with himself but absolutely a force to be reckoned with.