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Last week on the Sexist, we discussed the contraceptive knowledge deficit among young men (and I got into the sex ed video business). Readers, bless 'em, chimed in with more "magical" birth control theories they've heard over the years—from both men and women.

In my research on hilarious misconceptions about birth control, the NuvaRing proved to be one of the most misunderstood options. My theory: Unlike other methods of female birth control, men are actually forced to come in contact with the NuvaRing (through their penises!), at which point they are prompted to verbalize their confusion.

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Last week, I cornered some men into explaining their understanding of how birth control works, on camera. Results were mixed. Bonus: Guess which one is gay?

Allison, 26, and her boyfriend were having sex—an activity they had engaged in many times over the six months they had been dating—when her contraceptive vaginal ring fell right out of her vagina. Her boyfriend paused. He developed a sudden concern over the efficacy of the couple’s method of birth control. “He was like, ‘Oh, [...]