They must think I am stupid

I am of the you never know group. Had a bike listed on EBay. Got a message from a guy saying that he wanted the bike. His offer...I will send you a check for the BIN price....told me to hold on to the check, company coming to pick it up would give me cash...and tack on $100 for my troubles. Next day I got a call from the guy coming to pick it up. They were coming from Maine, I lived in AZ at the time. Be damned if the guy did not show up...on time. He asked me to lead him to the bank I used so there was no doubt to the funds being counterfeit. Turns it the guy that bought the bike was just starting a used bike dealership, and the driver was his brother, they had purchased a bunch of bikes from various sources thru out the country, his brother was out picking them all up. Go figure...