When does damage become irreparable? When do doctors decide, too much damage has been done? How do they make that call? Sometimes you have to know when enough is enough, and walk away. Know that you did your best, tried as hard as you could and simply, nothing more could be done. Cut your loses and get out. I think that there comes a point like this in all things in life. When something (or someone) ceases to have meaningful use, it’s discarded. This is more difficult with people, however, but the idea is the same. If a person ceases to be useful, you must make the decision: is this worth the work to hold on to, or is it a lost cause? Am I going to put more work into this, than I am going to get out? When it comes to things, it’s usually a pretty simple answer, but people are much harder to let go of. However, if the damage is to severe and the work required far exceeds the outcome, you have to just fold and hope for a better hand next time.