Eve is right, there are things for which anger is a healthy, proper reaction.
Of course there's a big difference between feeling an emotion and acting on it impulsively.
Be careful when you decide that you can toss out a part of your system that has been being refined through many millions of individual lives- it's there for a reason, and it's always worthwhile to understand why.
P.S. For instance, look at the effects of human overpopulation on every living thing on Earth.
Now look at your reaction in "I'm pregnant".
That's a powerful force, that can make you think primarily about reproduction as a personal issue.