When do you stop giving 2nd chances?

[Headless Rat]

What do you do when you get really fed up of someone (with good reason) and decide to cut them out of your life because it seems like they will just keep treating you with the same disrespect ?EVEN THOUGH you may get on with them a lot of the time and you've known them for a long long time?When do you decide enough is enough?When do second chances become last chances?and do you ever go back on your decisions?

[joko]

In the same way that plants need to be pruned - have all the dead and useless bits removed in order for it to thrive - so to must we occasionally cut the dead wood from our lives.
not a pleasant job but its the only way

I am not suggesting we all abandon anyone who has any sort of problem or causes us problems, but evaluate what is damaging, what can be saved and what is worth the effort.