Has anyone of you ever done this?
Does it work, is it healthy, do you recommend it...?
I had anger issues when I was younger. Depending on the cause this would sometimes lead to violence on my part with the occasional run in with the law or hospital. I'd say I've learned to channel it. I focus on dispersing/purging mostly, occasionally I can redirect it positively. My kinda anger was the fast and hot kind vs. the simmering kind. If you have the same kind, speed bumps is what you need. How? Baby steps, build on that. This isn't going to happen overnight. The most important part is those first few seconds. I worked on this in stages, adapting healthier and healthier expressions. Examples:
Remove yourself from the situation physically and immediately. If you are at work, go to the bathroom.
Tell the person you are angry with that you are angry/getting pissed off, whatever is appropiate and to leave you alone for a moment.
I'd hit something, which while not healthy, sure beats (pun intended) hitting the person. Eventually you want to ditch this method because it's not very socially accepted and can freak people out.
Create a strong fear mental construct. Fear can and does beat anger. When you are not angry, think of something that you'd fear A LOT as a consequence of mal expressing your anger.
Remember you are trying to bottle this up initially, you can bleed it off later.
In time, this will be easier to do, allowing you to detach and observe yourself, rationalize, intellectualize, repress whatever methods work best for you until you can purge.
I eventually internalized my methods and it became who I am. When I was like this seems like a thoasand decades ago but I don't dare forget. I hope this helps, good luck.