Why do I get angry when someone is horrible to me? I could just ignore them and carry on no harm done.

Have you ever come across anyone, or even yourself, who has asked the following question? I ask because it feels like it fits into 'field theory'.

"Why do I get angry when someone is rude to me? Or, is unkind to me in any number of other ways, all the way up to and including a physical attack?"

Seems like a strange question right? 

But I'm asking very seriously about it. Because my anger in response is a choice I freely made. I could have made an alternative choice which is to laugh or ignore it. Or simply not to have got angry and carried on as usual. 

There reason I ask and why I feel it's important, is because social organisation stands fully behind our 'right' to be angry when someone is horrible to us. Society does not say "just ignore it, its just words". And now we have hate law reinforcing what society already backs up.

I'm not saying I agree or disagree with the behaviours of both sides in such an interaction. I'm asking because I want to know why it happens, in the material sense, not the moral one. 

Is there a scientific name for this? Maybe Rupert Sheldrake knows and has already discussed it. 

Is there a 'field' which is distorted when people try to project harm onto others by making them angry. And the anger is a natural force response correcting the field back into its normal shape. Does this fit in with the morphic field?

The trigger which caused me to ask further, is that I have put the question to trusted friends. And I get a fierce response instead of a logical or scientific dialogue. Followed by an allegation that I am too provocative with people and its true what they've heard about me. 

That kind of response, is a clear signal something very important is happening. Some kind of forbidden or secret knowledge, which may or may not need defending by nature and for good reason maybe.

But, what is it, exactly?