Selling fish...isn't it a no-no?

Well I tried to kindly and gently ask her if she knew that it was against regs for her husband to sell fish he caught...she replied that he was aware, and that the guy he sold it to was a close friend, and that he insisted on paying...well, whatever.  It was not too bad of a conversation.  He hasn't done it very often apparently.  But at least she knows!