Few could have predicted in 1984 that the low-budget sci-fi/action flick The Terminator, starring a sentient slab of granite named Arnold Schwarzenegger and directed by an unknown youngster named James Cameron, would loom so large over pop culture. And yet it almost didn't — the first film established the mind-bending time travel mechanics of the plot in a lean and efficient manner, but was almost derailed by a side plot involving Sarah Connor's discovery of the location of Cyberdyne Systems and the creator of Skynet- a side plot which, you may notice, was saved for the second film, when they could do it better.
In this deleted scene, Sarah attempts to convince Reese to break mission and go after Cyberdyne — when Reese disagrees, she runs away, forcing him to run her down, tackle her, and pull a gun on her. Since the entire reason for his existence is to protect her, this is patently ridiculous, and Sarah recognizes it as the ultimate empty threat. Michael Biehn as Reese does an admirable job trying to frame it as a reflex, but it just seems tone-deaf and out of character for Sarah's protector.