This is an interesting test of human nature and honesty.
A bank robber stuck up the Wells Fargo Bank branch in Pembroke Pines, Fla., in the Ft. Lauderdale area on March 29, and as he took off on his motorcycle, cash spilled onto the road. Some citizens, who obviously dislike litter, picked up the green paper money, NBC Miami reported. 
Now, the FBI is asking that anyone who picked up the money return it.
Guess what? So far, no one has.