I bought a couple of kegs off a liquor store years ago... yea, probably 'stolen'. I don't feel guilty about it, they were a bit dented up and from budwieser. I didn't hurt any craft brewery in the process. I don't know why there always has to be ethics around buying used kegs... there is so much illegal stuff going on everyday, much much worse than this and we want to accept the guilt of buying a possibly 'stolen' keg... there are bigger threats out there to worry about.
I don't even know what to say.