#4 Poor preparation. It’s only possible to use a condom if you actually have one. And no, ladies, it’s not always the guy’s job to provide the rubber. Everybody’s nightstand should have condoms and water-based lubricant in it. Women sometimes worry that they’ll seem slutty if they have condoms at home, but come on, you already took home a guy that you just met. And he’s in a woman’s room who he just met as well. Nobody has any right to judge.