I struggle with this sort of thing a lot. Stuff just pisses me off! I can see it happening. But I often can't seem to do anything about it. I do think I'm getting better. I really try to be aware of my gut-level reactions to things & not let myself be carried away. But sometimes I just can't seem to help it. And you're right. It is unacceptable.

Perhaps what you want to be looking at is material on the subject of anger management. Here are links to 5 articles, from PC's archives, on the subject plus a link to Aaron Karmin's anger management blog:

Why So Angry & Irritable? It Might Be Depression

Angry All the Time for No Reason? This Might Be Why

Getting Anger & Hostility Under Control

6 Steps to Manage Anger

Tips for Managing Anger

https://blogs.psychcentral.com/anger/