In college, we were at a formal event at a hotel in Chicago and just outside the bathroom, there was $200 scattered around the floor, like someone had intentionally dropped it. It's not like it was all in one stack of 20s that fell out of someones pocket. Mind you, this is right in front of the bathroom where numerous people were walking right past it. After looking around for the hidden camera, my friend and I picked up the money, and found someone organizing the event. There was a DJ, so they made an announcement to come to the DJ booth if anyone had lost some money, and to identify the amount. Nobody came forward after about an hour, so we kept the money.
The funny part was, we first spoke to the guy checking IDs at the door, who said he would hang on to it in case anyone claimed it. Luckily, even at my young age at the time, I was wise enough to know that he was going to pocket the cash for himself, and we took ourselves to a nice dinner the next night, after doing our best in good faith to find the owner. And I'm pretty sure we never ended up on a hidden camera show either!
And of course Im glad to hear that GS turned in the money, though from reading this board I can understand how he might have some concerns about whether or not the money found its way back to its rightful owner. I like to think that someone working at a bank would do the right thing as well, especially considering that there must be some record that the transaction took place.