A co-worker lands the promotion you were gunning for. Your very first thought is a twinge of jealousy: “Brian’s been promoted. I wanted that role.” From there, you may start to walk down a negative path. You feel like sulking. Brian is no longer a likable, competent colleague, but clearly, a conniving brown-noser. You might as well stop working so hard, since it’s going unnoticed anyhow. Sound familiar?