S_isale
to identify the person quite simple- observe the people coming in to your home / yard sale.
look for old guy who at first seems pleasant then starts trying to buy your whole bedroom without seeing it. He actually called me after I posted the items for sale to offer to buy the whole bedroom without seeing it, i could barely understand him,I thought he was stoned !.
anyway as I said in the topic above he is an asian guy with several young lovely ladies with him ( posssibly fillapina or indonesion ). you will soon spot him!

regards