FWIW
When I first went to counseling a long time ago...one of my first excercises was to get in touch with my anger...I was encouraged to yell, cuss, scream and vent....but to do it where I was ALONE
I went out in the woods near my house..called trees everything in the book and threw rocks at them.
(Later I worked on a farm..got tons of eggs and threw eggs at trees SPLAT..what fun!)
So,my point is that it can be appropriate to express anger...we just need to learn to do it appropriately..
I needed to get rid of alot of long bottled up stuff and that is how I went about it.