I'll just repeat the telling of when I was in NYC a few years ago and I lost my cellphone on the subway...I got back to my aunt and uncle's house that night and there's a message for me. Somebody found the phone (and called every number in the contact list, hoping to find the owner, i.e. me) and wants me to come back to get it! So I did. A very nice clinic nurse found it and kept it for me. So I went down to Union Square where her office was and got the phone back!