[Pog0]

Their opponents in the future won't be so nice. Considering that you were considering not taking advantage of these players who were throwing money away, you should think of yourself as a better person than those who wouldn't give it a second thought (although probably a worse professional gambler based on this "weakness" alone). Think that by letting this person 'off the hook', they'll just do the same thing and lose it to a worse person. Might as well let a noble player like yourself take the profits while teaching the fish a lesson that he/she will learn regardless of whether or not you profit off of it.