Anger

It may be possible to be angry as an expression of love, or at least the “appearance” of being angry. The “appearance” of being angry, may be an expedient way of getting the attention of someone that would not recognize the intention of the “appearance” of love. Very difficult to judge, I am sure. I do not doubt that being human, Jesus was susceptible to being angry. Obviously “real” anger is useful in the human earthly realm in which we live. Unfortunately ALL negative, unspiritual behaviors have uses here on earth. However, I have my doubts that “real” anger is ever useful or productive to spiritual development. That said: How would we ever learn to be “good” if we are never exposed to “bad”.
I have learned much, much more living through difficulty than from an easy life.
The problem here is that some people are knocked down so completely, that they cannot help themselves any longer. This would highlight the importance of helping one another, and learning the example set by Jesus.