You can make a distinction between gender when it comes to the phrases. To my male friends, yeah. Depending on the situation I can see myself saying both of those phrases. But to my female friends? They don’t mean the same thing.

“Calm your tits” is a maybe depending on the circumstances and how close we are, but never in an aggressive tone.

“Stop being such a bitch”, downright out. Never to those friends. So many better ways to phrase it depending on the circumstances.

And finally, all of these were to my friends, NOT A FUCKING COWORKER. You never say these things to coworkers. The whole goal of team management is promoting teamwork, these phrase foster nothing but animosity. I try to say anything even remotely close to those phrases and my ass will be out of a job before lunch (and for good reason).

In terms of legal, IANAL, but as far as I know you would have to present this to a jury or judge, and the bar that they’d have to pass in the US is “more likely than not”. In other words: “is it more likely than not that this comment was made to harass the individual based on their sex?” Pretty low bar to cross.

Also, LTT is a Canadian company, so the above paragraph is kinda moot to the whole situation.

TL;DR: those phrases are rude to women, LTT would likely have a rough time in court (if they were a US company)