All the time
Yes, and it's very disturbing.
It happened once, it was embarrassing and I felt terrible when I remembered who it was afterwards.
Yes a few times but only one came up and talked to me till I remembered who she was. Kind of embarrassing sometimes!
Well, she said she knew me.
She actually didn't.
Once close enough, grabbed my wallet from my back pocket, pulled out the cash, threw the wallet and ran.
I have... Well... Half kind of face-blindness. I can't remember faces that well. It has been bothering me for a long time. Sometimes people come up and start chatting with me, since I'm apparently more or less a famous figure in my home town, but... I just can't seem to remember them.
Hasn't happened in a restaurant but some former charges have seen me through the checkout!
Sounds like a reunion at the in-laws to me.
When I was in school I worked banquets. The girls would amuse themselves by greeting guests by name. Guests all had name tags, but most of them did not remember that. But one big guy did remember. He looked at the brand name on the girl's apron and boomed "ARAMARK, WADDAYA SAY!"
A couple of times. I can remember most people, but not their names or where I knew them from.