10 Confusing Movie Questions We Still Don't Understand

Demolition Man received mixed reviews back in the day, but has since developed a cult-following, due to its biting social commentary and surprisingly accuracy in depicting the future. (It was also spot-on with Arnold Schwarzenegger's transition into politics.)

But another reason why certain moviegoers still reflect on this sci-fi thriller is because of one specific joke. The story follows a tough-as-nails cop called John Spartan (Sylvester Stallone) who wakes up in a drastically different future. While using the bathroom, he's baffled to learn toilet paper has been replaced with three seashells. 

Obviously, this throwaway gag wasn't meant to be given much thought. And yet, there are some who just won't let it go. Since the shells are never explained, viewers are encouraged to use their imaginations to comprehend how this society dispose of their... business. There are plenty of theories online (don't look them up), but there's no concrete explanation. Of course, the reason why there's no concrete explanation is because there was never meant to be.

Stranger still, Spartan indicates he still doesn't understand how the seashells work after seeing them again later on. The only question more confusing than how the three seashells work is why doesn't Spartan ask somebody how to use them?