Why do I love to spoil things for people?
I don't know why it is so fun to me.
For instance, a friend was playing Silent Hill 2 for the first time, and every single fiber of my being wanted to yell: "James killed Mary!" at him. Same with Knights of the Old Republic. As soon as he started, I wanted to say: "You're really Revan!" I know it's a mean thing to like to do, but I just want to spoil things for people so badly.