I dunno, when a girl gets violent and irrational it is called a period and we all have to respect it.
When a bloke gets violent and irrational it is called drunk-and-disorderly and we get arrested.
No justice in the world!
Something I have noticed: most times at the start of a relationship, I have been told "Oh, I think PMT is a myth, I never get crabby at my time of the month". 18-months later "Oh, sorry I shouted at you for an hour last night", "Sorry I slapped you in the face", "Sorry I called your female friend a sl*t-b*tch-wh*re". And what is the punchline? "It's my time of the month." Thankfully, they never endanger the family jewels, presumably linked to the reproductive nature of it all
I suspect PMT is an excuse. Don't get me wrong, I'm sure that women DO feel hormonal. But then, so do men. However, when we chaps have a sudden rush of testosterone we usually know that it is best not to act on it. We learn to control our tempers and 99% of us are able to do this 99% of the time.
Could you imagine how much pounding of chests and punching-up would occur if we all went into a rage everytime our hypethalamus said "Go on, you can take him, have some testosterone!"
At least women know when it is coming and can prepare for it.