Well yeah but you don't carry around a dumbell, do you? Anger is a waste of energy and very dangerous in most of the cases. It should be avoided at all costs unless you're going into a fight and don't have any other choice.

I wholeheartedly disagree with the OP of this line of commentary. Saying anger is good and one should embrace it is a really bad suggestion.

Anger makes you blind, it fogs your rational thinking and makes you do things you'll probably regret afterwards.

So, avoid it and think rationally.