Hey, McFly! [both George and Marty turn around] What do you think your doing?

[to himself]

Biff.

Hey, I'm talking to you McFly, you Irish bug!

Oh, hey, Biff. Hey, guys. How are you doin'?

Do you got my homework finished, McFly?

Well, I figured since it wasn't due till Monday -

Hello? Hello? Anybody home, huh, Think, McFly! Think! I gotta have time to recopy it. Do you realize what what would happen if I handed in my homework in your handwriting? I'll get kicked out of school. You wouldn't want that to happen would ya? WOULD YA?!

Of course not, Biff. Now I wouldn't want that to happen.

[notices Marty staring at him]

Well, what are you looking at, butthead!