EVERY time that I have advertised equipment for sale of Bob's Rock shop, I have been come after by the foreign scammers offering to have their freight company pick it up and my " Official" Bank check would come by FED X . In order to play with one guy who wanted an 18" saw, I asked him what did he plan on cutting with it. He did not have a clue as to how to answer other than a rock since the ad said rock saw. It is good to have some idea of who you are dealing with.