I personally can't even try to block someone. I think its because I also am nosy and can't completely kick someone out of my life knowing that they are still there. If I had THAT much of a problem with them I'd try to address it and get their side. Just try to understand where they are coming from and how they see things so I can understand why they did what they did or said what they said to make me upset. But just as I'd like people to be patient with me, I have to remember to not let my anger get the best of me and be patient with them.