You're late, do you have no concept of time? Hey c'mon, I had...
Dr. Emmett Brown: You're late, do you have no concept of time?
Marty McFly: Hey c'mon, I had to change, you think I'm going back in that, that zoot suit? The old man really came through, it worked!
Dr. Emmett Brown: What?
Marty McFly: He laid out Biff in one punch! I never knew he had it in him! He never stood up to Biff in his life!