Things Wrong With Fan Fiction (Or just Books In General)

Allergies / Sneezing

I've never seen a character have allergies. Or sneeze. Unless it's important to the storyline. Like they'll die if they eat a certain food.

And nobody randomly sneezes. Like, everyone sneezes? I sure hope people do.

And what about summer allergies?

Or random case of the hiccups?

Stuff like that really isn't included. I'm guilty of not adding it either- but that's something that I've picked up on.