You really scared me, you shithead.
Are you going to help me up?
Jack takes David’s extended hand to help him up when
THE WOLF MONSTER SPRINGS!
EXT. MOORS – NIGHT
The lunging beast brings Jack down in one fell swoop.
David falls back on his ass. Jack is screaming and
struggling as he is torn to shreds. David scrambles to
his feet and runs in complete panic. Jack’s screams
and the wolf’s roars combine.
-John Landis, An American Werewolf in London script draft