As writers we all get stung by criticism of our work, whether it is published or just writing submitted on a course or at a writers' group.
But American author Alice Hoffman took her dismay a step too far when she launched an angry tirade against a newspaper reviewer on Twitter and worse still, published the reviewer's personal contact details, enciting her fans to attack her too.
The excellent How Publishing Really Works blog has a great summary of the whole fiasco and its ramifications here.
[For the record Alice Hoffman is a writer I feel I should like, but when I borrowed a couple of her books from the library some years ago I gave up on them. I hope she won't attack me for that...]