Originally Posted by
Italuminium
but hey... I got that Zonda's!

That wasn't the cause...but I digress.
Interesting and instructive story, thanks for sharing. I, too, have tolerated some sketchiness in my dealings with people who needed my help, so I'm not making any moral judgements here. But in my experience whatever level of sketchiness you tolerate in a transaction (or other relationship) simply resets that level of sketchiness to "normal," from which it can only climb.
I guess I'd tell the kid look, I wanted the bike, I bought the bike. If I decide to sell it, I'll give you a call. Now bug off.
It turned out OK, but a hindsight Look clearly says risk-benefit analysis made this a non-starter. I really do feel badly for him, but at the same time I'm not his father or friend and I went through a good bit of grief at that point. I would clearly not be a good banker.