Cool encounter. I'm always voyueristically looking out for other folks' knives when I'm out and about so that I can strike up conversations like that, if I have a chance. It doesn't happen often enough.
I guess that's one of the things about being a knife knut; the eternal search in the public for others of our ilk.
So far I've had interesting conversations with a 30 something young lady at the watch counter at Walmart who had a sak tinker, a late 50's lady at a Salvation Army thrift store who had a well used Case pen knife, an elderly man at Lowes who had an old beat up vetern Old Timer stockman, and a young late teens-early 20's goth girl who had a number 9 Opinel from her purse that she was using to cut a donut in half to share with her friend.
There's breathren out there.