Milquetoast : n. One who has a meek, timid, unassertive nature.

George McFly: I know what you're gonna say, son. And you're right, you're right. But Biff just happens to be my supervisor, and I'm afraid I'm just no good at... confrontations.
Marty McFly: The car, Dad! I mean he wrecked it! He totaled it! I needed that car tomorrow night, Dad. Do you have any idea how important this is to me? Do you have any clue?
George McFly: I know, son. And all I can say is... I'm sorry.

Milton Waddams :And I said, I don't care if they lay me off either, because I told, I told Bill that if they move my desk one more time, then, then I'm, I'm quitting, I'm going to quit. And, and I told Don too, because they've moved my desk four times already this year, and I used to be over by the window, and I could see the squirrels, and they were married, but then, they switched from the Swingline to the Boston stapler, but I kept my Swingline stapler because it didn't bind up as much, and I kept the staples for the Swingline stapler and it's not okay because if they take my stapler then I'll set the building on fire...

Screech: Wow, my first Hollywood party. I wonder if the Simpsons are gonna be there?