When I was younger, I had trouble expressing anger, tho' I sure did feel it. A shrink taught me to pound my pillow and later I started throwing dishware in a cement basement. Old bottles hit the wall and e*x*p*l*o*d*e -- that was very satisfying -- until I had to clean up the mess.

I agree with Eskie lover that anger uses up a lot of energy. Perhaps anther reason I rarely feel anger anymore is that I suffer from chronic fatigue and don't have much energy to spare for it.