Interesting article, Moose. I never realized how angry Jeff Bezos is. I do like his comment about taking stupid pills. lol.
Anyway, when I am angry, I go into a full on rage and fight people or destroy objects, pretty much always, so for in my case, I don't think being grumpy or bad-tempered is a good thing. I'm usually raging or I'm not; there is no in between for me.
Oh well. I guess I am rare in that I am better off happy and not angry, but I am sure others can relate to the article.