I once forgot the name of my own grandchild when I ran into an old friend at the grocery store.
What's worse, I couldn't remember for a full five minutes.

She looked at me like I was completely out of my mind while I hemmed and hawed and tried to make other small talk.
It was so upsetting! But it's never been that bad since - that was about 5 years ago. These days I just forget the usual stuff: turning off the oven, where I parked the darn car.
Fun!
JJ