Maybe it's because I'm not a professional..but I've got a buncha tools and 0 receipts, none of them are stolen, lots I got from estate auctions and hock shops. Actually, I do have a few receipts that say "tools" with a price paid, but no description...when I used to do landscape maintenance, I worked for a guy who had a lot of tools, all legit, I worked for tools, got no receipt...maybe that's my bad, neglect or whatever, but I have a hard time thinking everyone's a thief even tho there do seem to be more and more these days. I'm not worried about buying a bike with no title, very very few actually turn out to be stolen, most stolen bikes end up as boxes of parts, or used in crimes or for joyrides and end up in police impound.