6. Don't Be A Jerk
If there has ever been one constant within the horror genre, it is that being a jerk is a death sentence. Theres nothing worse than the guy who refuses to cooperate with everyone else during times of crisis, thus the horror movie gods decree them unworthy of life, and the audience is grateful for it. Why cant people just be nice? Its like horror movies dont exist within horror movies, so the characters dont know that being a team player from the start increases your odds of survival. So if a character is set on ending their meager existence, they only need treat the other characters like crap. Their time will come sooner than later.