When I'm criticized unjustly (from my own viewpoint, at least), or when someone I'm sure will understand me doesn't, I go running for a little longer than usual. By running longer it's like I can physically exhaust that portion of my discontent. It also makes me realize again how weak I am, how limited my abilities are. I become aware, physically, of these low points. And one of the results of running a little farther than usual is that I become that much stronger. If I'm angry, I direct that anger toward myself. If I have a frustrating experience, I use that to improve myself.