avoiding bad moods

I am in a bad mood today. Couple of work related problems that I can't get out of my mind... I asked the kids for advice: what do they do when they want get beyond a bad mood? A gave me great advice: distract yourself with something else. For example, play a computer game... This is definitely the right approach. We can't rationalize ourselves out of bad moods (the rider can't "force" the elephant to change course) but we can certainly get our minds into something else (trick the elephant to do what you want). OK, now which game should I play...?