The 'Sports Almanac'. Son of a bitch stole my idea! He must hav...
Marty McFly: The 'Sports Almanac'. Son of a bitch stole my idea! He must have been listening when I... It's my fault! The whole thing's my fault. If I hadn't have boughten that damn book, then none of this would have ever happened.
Doc: Well, forget it Marty. That's all in the past.
Marty McFly: You mean the future.
Doc: Whatever! It demonstrates precisely how time travel can be misused, and why the time machine must be destroyed, after we straighten all of this out.