Menstrual cups are one of the most inventive and eco-friendly period products to hit the market, and they are also the most likely to confound unknowing men. For those unfamiliar, menstrual cups are small silicone cups you insert during your period to catch blood. As vampy as it sounds, it's fairly easy to do and not a total Dracula nightmare. Plus, it saves you money on tampons and gives the environment a break!
However handy they are, menstrual cups are still a relatively new concept to a lot of people, and if you see one lying around it's easy to think it's something else entirely.
The situation quickly got even funnier, because the dad also didn't know what the cup was.