So, I am female. When working at a Fortune 500 company, I once emailed a colleague and copied our two bosses. I advised him to never speak that way to me again.<p>It went to HR. I got interviewed. I assume he got interviewed. He was not fired. He never spoke that way to me again. I eventually reestablished trust with this man and we got on well. I suspect he got sensitivity training. I was not told what went down. It was all handled very discreetly.<p>Please do get HR involved. Please do not listen to the people here who are advising you to nuke the man from orbit, it&#x27;s the only way. Doing that will only deepen the problem. Men and women need to learn to interact at work. Promoting fear and loathing will not further that larger goal.<p>You get his side. You do some training. If it continues to be a problem, sure, fire him. But please do not use final solution&#x2F;terrorist tactics. This only hurts women in the long run. Men need to learn better manners. Cutting their nuts off for a faux pas doesn&#x27;t teach them that. It promotes a hostile environment between the genders. It doesn&#x27;t create a more civil environment.