It can useful to have a friend who’s more extreme than you are. They fish more, drink more or spend more. These reassuring people make us feel less guilty about our own compulsive habits. Well I’m not that bad, we say, he’s got ten pairs of Belgians. This doesn’t have to be self-serving. Sometimes a person inspires us in their commitment to do good work or think creatively. A Japanese friend’s company is doing so well that it’s exciting to see reminds you that it’s good to be courageous.