Gunnery Sergeant Hartman: Where in the hell are you from anyway, private?
Private: Sir, Texas, sir!
Gunnery Sergeant Hartman: Holy dog shit, Texas! Only steers and queers come from Texas, private Cowboy! And you don't much look like a steer to me so that kinda narrows it down!
During the drill scene when Sgt. Hartman is asking Private Pyle if he knows the difference between his left and his right, watch the positioning of Pvt Pyle's cap. After being struck the first time, the cap is slightly cocked. After the shot returns to Pyle and before he gets struck for the second time, the cap is obviously cocked further over.
Ermey was convinced that the scenes in boot camp wouldn't be believable unless the actors were actually frightened of him. So the other actors in the film only saw him as the Gunny Hartman character. He never spoke, ate, or fraternized with any of them unless it was during a scene. Much to Ermey's pleasure, the fear you see on the screen is real. Many times in the shooting the actors would become so flustered by Ermey that they would blow their lines. Ermey recalls that he's seen the other actors in the film around Hollywood from time to time, and they still won't speak to him.