If you have a friend that is adding you to groups you do not want to belong to, or they are behaving in a way that bothers you, you can tell them to stop doing it, block them or remove them as a friend and they will no longer EVER have the ability to add you to any group.

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Mr Giuliani, who would probably back Messrs Vallone or Hevesi over his former friend, might be able to block that route.

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But Mr Sarkozy said he could not understand why the paper's journalists had gone on strike several times to try to block the recent takeover of their publication by his friend Bernard Arnault, France's richest man.

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Mr. Bolcik wrote his friend and told him he was going to block him from the page if he didn't pipe down.

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