A borrower repaid us our loan and threw in a package of 3 very fancy wines to boot. Now what do we do with the wine? He wouldn’t hear of taking it back.
Answer:
In principle, if the borrower is Jewish, you should have refused to accept the wines.
Once accepted, there is no obligation to give it back (because this was not arranged in advance). Unlike other rabbinic ribis, the prohibition of ribis me’ucheres (late interest) is less stringent, and there is not even a recommendation to give it back. In this case, according to what you write, you can’t give it back anyway.
Therefore, after accepting it, you can keep the wine for yourself.
