I think it is a little shallow of people to think of forgetting something as a bonehead move. I didnt realize climbers were so perfect. I know that I am not. I wasnt going to make fun of my buddy for forgetting his rope because it could happen to me next time.
Personally, if I find gear I attempt to return it to the original owner. No matter what it is. Think of it as good karma or whatever, but everyone screws up sometimes. And I hope that next time I screw up and leave something behind, maybe I will get it back. But I dont expect anything.
In the case of my buddies rope, he drove back there yesterday after work and found a note in its place with a name and phone number. So it looks like he will be getting back his rope.