Men still make jokes in the workplace at times that a woman who is sharp towards them must be having "that time of the month" (notice that, even here, men are using a euphemism).

Little do they know that PMS affects women in different ways and accounts very little (or none) for her behaviour. You can respond to them "what's wrong, can't handle a bit of hurt feelings" or something like that, they think they can put the focus of their problems on you, put the focus of their problem at them by implying they're whingy little bitches.

It's males like those that hold those views are part of why I'm so cautious about dating (I haven't dated anyone before and haven't had sex with anyone) as someone who tends to experience the horny type of PMS (and goddamnit when I get it, it's distractingly strong). Try learning a new technical skillset required for your hobby without scratching any itches and within a specific time frame before life hits you and stops you from indulging in your hobby and cripples your skillset and you'll know what I mean!