" "Is it time for your period, or something?"

With unerring instinct, he'd found a great big red button, and pushed it. Wyatt fights to win, which means he fights dirty. I understand the concept because that's how I fight, too, but understanding it didn't stop me from reacting. I could practically feel my blood bubbling with steam. "What?"

He turned around, all controlled aggression, and damned if he didn't push the button again. "What is it about having a period that makes women so bitchy?"

... It was an effort, but I said as sweetly as possible, "It isn't that we're bitchier, it's that having a period makes us feel all tired and achy, so we have less tolerance for all the bullshit we normally SUFFER IN SILENCE." By the time the sentence ended the sweetness was long gone, my jaw was clenched, and I think my eyes were bugging out.

Wyatt took a step back, belatedly looking alarmed."
— Linda Howard (Drop Dead Gorgeous)