Horror movies frequently have Genre Savvy characters. Sometimes the black guy takes the role, sometimes the Nerd. Regardless, the Genre Savvy character is nearly always blind to the most relevant death trope: the Genre Savvy character always dies. Extra irony points if the character gets dispatched through some death trope immediately after talking about it -- or better yet in the midst of talking about it. In the rare event that they're actually Genre Savvy enough to realize that their knowledge places them in danger ... well, let's not consider that.