Women may never truly understand men and men won't ever wrap their heads around what women really want, but that's okay. We can all appreciate a little mystery. And while you don't need to know everything about the other sex, you should probably be aware of what pisses them off.
Because we aren't all wired the same way, there are things that seem inoffensive to you that many women will find crude. If you knew better, you do better, so here are 15 Unintentionally Annoying Things Guys Do to Women.