Soon after Justine Sacco's shaming, I was talking with a friend, a journalist, who told me he had so many jokes, little observations, potentially risque thoughts, that he wouldn't dare to post online anymore. 'I suddenly feel with social media like I'm tiptoeing around an unpredictable, angry, unbalanced parent who might strike out at any moment,' he said. 'It's horrible.' He didn't want me to name him, he said, in case it sparked something off. We see ourselves as nonconformist, but I think all of this is creating a more conformist, conservative age. 'Look!' we're saying. 'WE'RE normal! THIS is the average!' We are defining the boundaries of normality by tearing apart the people outside of it.