I had such an experience just this past Friday night. I was walking from my parked 911 toward a bar (hard to believe, eh?). Just then I heard an engine fire up about 100 ft. away and I knew it was a 3.2. I scouted around and saw a silver anniv. model, just as its ligts came on in the dark parking lot. I went up to the startled driver and he rolled down his window. I said "88?" He looked at me like I was from outer space and said, "Yeah. How'd you know?" We talked for about 20 min. He had never heard of this BBS. So we exchanged business cards and I just emailed him some links to here and I fully expect he'll become a Pelican cohort in no time, certainly participating in Doug E's organized VA/MD/DC fun runs.
Once a guy came up to me at a self car wash in NJ and wouldn't let me get away. He had a 964 and just wanted to talk and talk, while I tried to get my 911 done before my quarters ran out. I was polite, but I was in a bit of a hurry.
Happens all the time, except for Boxster and 996 folks.
I stopped to help a disabled Boxster once and we stood by the side of the busy road shootin' for quite a while. Last week I saw a disabled 944 on the side of the Beltway, but couldn't get over to stop for almost a mile, so I hope they were ok.