I was in the bike lane of a busy road a couple years ago and found a wallet that had exploded in the gutter, probably 20 different cards everywhere and two $2 bills. I scooped it all up and spent a few minutes at work trying to find the owner. There was a high school ID so I called the school and gave them my info to pass on to the kid. So later he calls me and says he left the wallet on top of car after getting gas a couple days ago. I met up with him and he looked through everything and said the only thing missing was a single $2 bill. Amazing that all that stuff sat in the gutter for two days and nobody even noticed the cash.