Australian journalist Elizabeth Daoud just found out that one of her friends' male coworkers has been tracking her friend's period so he, and other guys in the office, could avoid her when she's PMSing.

He got the idea after making his female coworker cry, which happened after he told her she was single because she "talked back" too much. From that point on, this guy started using a period-tracking app to make sure she wasn't about to bleed before he insulted her to her face.