Anger is a secondary emotion to fear. If we have parts or alters or internal people, they can react to those feelings if there was a reason to fear anger before. For us, we do react badly to anger; but getting angry doesn't cause a switch of people. Though, switching people sometimes allows anger to be expressed because only 2 internal people deal with anger. Often if there is a situation that suddenly turns angry or violent or scary, our runner will take off and escape or hide. But if someone comes at us angry and demands something of us or provokes us, one of the two will swap forward (or both... that gets interesting) and deal with it. Hope that helps.