Sometimes there are people that manage to get under your skin, no matter how much you try to prevent it. When someone does or says something that (justly) infuriates you, it creates the risk of a damaged relationship, and if in a work setting, damaged career interests. There are two areas to consider when addressing someone who has seriously ill-treated you: what never to do, and what to do at the right time. Let’s start with what never to do:
Lose your temper.
There is no benefit in throwing a tantrum. Raising your voice, punching the wall, or throwing your phone is a big no-no. If you feel that you are about to lose your temper, the best thing to do is bite your lip and respectfully excuse yourself.
Lower your conduct.
When someone is really getting at you, it can be tempting to hit below the belt with personal comments or sensitive topics. Don’t. Using low-handed methods to emotionally hurt someone will worsen the relationship, and anyone who hears about it will think less of you for doing it.
Complain or gossip to others.
Just don’t. People might ask you about the situation or the individual in question. All you have to do is acknowledge that there is a difference of opinion and both of you are entitled to that. If you complain or gossip, it will just make you look like you don’t know how to maturely handle the situation.
Those were actions that you should avoid doing at all times. Doing them would only make your character look flimsy. On the other hand, here is what you can do and when to do it.
Let out steam productively.
If you are fuming, there are good ways to move the energy. If you are a highly physical person, go running, boxing, or do whatever activity you can do to safely burn off the anger. If not, do whatever lets you release energy, go walk in a forest, go dancing, play an instrument (assuming you know how), find something that completely engages you.
Talk to the individual maturely (if you must).
Sometimes a conversation is not necessary. Perhaps you will not likely see the person again, or perhaps they are so difficult that it is better not to re-engage, but usually, a talk can do a lot of good. Use non-violent communication techniques, and don’t verbally attack the person. The objective is to create resolution and peace, not vent (that’s what letting out steam was for).
Avoid the first three, and do the second two, and you will come out of 99% of upsetting situations without damaging your relationships or career, and possibly could impress people with your well-conducted response to the situation.