First off, glad to hear you found it.
Secondly, I have a really good story about this... A couple years back I was interning in Seattle, a couple hours from where I lived at the time. The starter in my truck happened to go out when I was in the parking lot of the company where I was working. Since I happened to have all the tools I needed to replace it, I took the thing off and went back to my apartment across the street. I called a cab and he came and got me, took me to the auto parts store where I bought a new starter, and brought me back to my truck. I then proceeded to put the new starter on my truck and get my truck going again.
So I finally get back to my apartment about 11:00 at night, and can't find my wallet anywhere. I go back to where my truck was in the company parking lot, thinking it might be there. No dice. I drive all around where I'd driven my truck to test it out, and can't find it. Remember it's like 11 at night, so I'm thinking I left it on my toolbox, it blew off, and it's long gone. I go back to my place and am freaking out because my driver's license, debit card, credit cards, social security card, everything is in there.
Not 15 minutes later I get a call from the cab company asking me if I'd lost a wallet. Somehow I'd left it in the backseat after I paid the guy. I say yes and the cabbie brings it back by my place a little while later. I just kept thinking how easy it would have been for the next guy to just keep it, or give it to the cabbie and have him keep it.
All I know is that made me realize how important it was to give the cabbie a good tip.
If I'd given him jack who knows how it would have turned out. Plus I chatted with him instead of just sitting back there like a lump. It definitely made me realize how good people can be from time to time.