Colt gun salesman: I'd like for you to have this new Colt Peacemaker and gun belt. Free of charge.
Marty McFly: Free?
Colt gun salesman: I want everybody to know that the gun that shot Buford Tannen was a Colt Peacemaker.
Marty McFly: Hey-hey, no problem. Thanks a lot!
Colt gun salesman: Of course, uh, you understand, that if you lose, I'm takin' it back.
Marty McFly: Thanks again.