This article from Jeremy Roberts at DEG consulting makes a lot of sense, when the pressures in the office build up what release mechanisms have you got? Today flinging my keyboard down at the desk was one I used (Not the most mature I know). Getting out and stomping around the car park is another I have used. That helped, a bit, even then thought of kicking a car helped 🙂 (I know!Still not mature).
Jeremy takes the walk one step further and turns it into a more positive direction, focussing on releasing the tension that has built up, allowing you to think more creatively in solving the problem rather than reacting to it.
Have a read, I think it might help, it will save some keyboards in my office at least.