Actor Stephen Fry has decided to quit social networking site Twitter, after an argument occurred between him and another user.

Fry, 52, a bipolar disorder sufferer, wrote: “Too much aggression and unkindness. Pity. I’m obviously not good enough. Bye everyone.”

He added: “Very depressed and any drop of meanness makes it so much worse.”

Of course hundreds of his followers begged him to reconsider his decision.