What Would Senpai Do: Anger Management

Dear Senpai,
I feel that as a karate student you should be able to remain calm(er) in difficult situations.  Yet every time I’m at work that goes out the window, and once I leave the office I become ‘me’ again.  I’ve read about other martial artists who have had this problem but with different triggers, thus I’m asking:  how do you deal with this?
I just received an email from a co-worker that used language that, while I’m sure they think is “normal” in our industry to use, and they may even see it as a tool to get things done faster, outside of this office would be totally unacceptable.  I am fighting the urge to become very angry and am trying to find the best means of handling this where I can still feel good about myself at the end of the day.
Senpai, how do you stay calm when your first instinct is anger and frustration?  How do you find the line between being peaceful and strong vs. too timid and taken advantage of?
 
Sincerely,
-Alisa

 

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