Whether they're being dragged across a chalkboard or dragged across your face, fingernails can be incredibly gross and terrifying. When you get down to their fundamental elements, they're basically just horns for your fingers that will grow infinitely if you don't file them down. Even though they protect the mushy sensitive tips of the digits, they themselves can have a whole host of problems that are nightmarish and cringe-induing.
So much dirt and debris manages to find it's way underneath the nailbeds that can lead to fungus, infection and general visual discomfort. Especially when you imagine someone biting their grimy nails to a bloody stump (you're welcome) and then chewing on the nail clippings.
On the other end of the spectrum, there are the people who grow their nails so long, they begin to curl like the golden locks flowing from Rapunzel's head. Except it's not hair, it's nails; disgusting keratin horns that are dangling from their fingers like the hands of Krampus on Christmas Eve...Just imagine what those feel like tickling your face while you sleep.
Oh, and of course, don't forget about hangnails, the smallest, yet most painful injury next to stubbing your little toe. Or when you accidentally bend one of them backwards and your stomach does a rollercoaster flip straight into hell.
So, the next time you go to gnaw on your nails, maybe remember these pictures before you put them in your mouth.