Continuity mistake: When Mongo first comes into town and the man on the horse says "You can't park that animal here," Mongo punches the horse and its rider, and the horse falls. Before the cut to the close up of the man (obviously the stunt double), his head is facing toward the horse's head. After the cut to the close up of the man, his body is facing the opposite direction.
Jim: Well, it got so that every piss-ant prairie punk who thought he could shoot a gun would ride into town to try out the Waco Kid. I must have killed more men than Cecil B. DeMille. It got pretty gritty. I started to hear the word "draw" in my sleep. Then one day, I was just walking down the street when I heard a voice behind me say, "Reach for it, mister!" I spun around... And there I was, face-to-face with a six-year old kid. Well, I just threw my guns down and walked away. Little bastard shot me in the ass. So I limped to the nearest saloon, crawled inside a whiskey bottle, and I've been there ever since.