Tell him you think the cards might be worth something. Offer to facilitate the sale. If he agrees set up your share with witnesses, say members of both families. 50/50 is great. But really anything like 10-20% is still more than plenty, I mean you don't own it. Then you both profit. Both families make some much needed cash and there's no hurt feeling.
Dupe him, sell them and get rich. Well you'll end up on a crappy A Current Affairs like program. And be a douche.
CynicalWolf said:
Real estate agents and doctors are two such "experts" who are in fact also experts at using their knowledge to make as much money as possible. A doctor could push medications on a patient that doesn't even need those pills, but since an "expert" says you need them, you THINK you need them. See where I'm going with this?
Doctors don't get any money from medications they prescribe. In previous years drug companies would give them gifts, free dinners etc. But they were under no obligation to actually prescribe that drug. However at least in Australia that's been massively cracked down. In fact I think they can't even give a doctor a piece of crap pen with their name on it.
As a doctor you get the same amount of money from a consultation if you don't give them a drug. Doctors aren't some enemy out to fleece you. Yes they make as much money as possible, but that's still through ethical practice and usually at the expense of the government not patients.