Petrie marching upon Littlefoot’s head.
LITTLEFOOT: Petrie... what are you doing?
PETRIE: Me drilling.
LITTLEFOOT: You’re walking back and forth on my head.
PETRIE: Me must learn discipline to join Air Force.
Littlefoot jerks his head up and back down, knocking Petrie off.
LITTLEFOOT: Petrie, that’s an Army drill you were doing, and aren’t you a bit young to join the Air Force?