Don't you hate it when you run in to someone, who clearly knows you, meanwhile you cannot place them?

This seems to happen to me a lot! Last night, at DS's school open house, someone starting talking to me like we were great old friends. I still have no idea who they were! So, obviously I could not introduce DH, and I felt very rude. At least twice this month I have run in to customers in other places, and had no idea how I knew them until they brought up the shop.

Sometimes it is really hard to play it off, and I always feel bad when this happens!

That happened to me at my 10 year high school reunion.  I felt like a jerk when the person who was talking to me realized I had no idea who she was.  It was very awkward.