Disagreeable people don’t just challenge us to think again. They also make agreeable people comfortable arguing, too. Instead of fleeing from friction, our grumpy colleagues engage it directly. By making it clear that they can handle a tussle, they create a norm for the rest of us to follow. If we’re not careful, though, what starts as a scuffle can turn into a brawl. How can we avoid that slippery slope?
