plenty of people buy tools (power mostly) knowing full well they're nicked and I'm guessing those are the people the OP is calling idiots and rightly so. I dont think for a minute anyone can criticise a buyer for going on ebay and buying something at market value. And the signs to look out for are vehicles cruising small industrial estates offering tools, people in pubs offering tools etc etc . Come on, most people know when a tool is dodgy and most people know when they buy anything from certain people its likely to be dodgy..