At the golf club, there was a sign posted on the bulletin board:

Lost Keys!
I lost my keys between the parking lot, the retaurant, and the pro shop. I may have put them in someone else’s bag by accident.
If you find them, please drop them off at the pro shop.
I’ll buy the finder lunch or dinner at the restaurant!

I loved the part about him maybe putting the keys in someone else’s bag.
I don’t feel quite so absent-minded now.