Men are expected to accept this, or they will suffer horribly. These women use the fact that they are menstruating, have just menstruated or are about to menstruate as a kind of "get out of jail free" card, which leaves them free to be psychotic bitches without fear of reprisal, which makes people hate them more and more all month long.
As a bystander to this train wreck, expect screeching, expect tears, expect no sex and expect to want to kill someone more than you ever have before.
"Daz, it's midnight! What do you expect us to do?"
"I don't care, my missus is in the middle of her Mental Cycle, so if I don't leave the house, I'll kill the bitch in her sleep"