When Ben and Locke first go to the cabin it was a defining moment in lost. But, if you re watch the scene, it doesn't make any sense that Ben had no idea about Jacob. he speaks with him and then when the proverbial s**t hits the fan, instead of Ben crapping his pants like he should he grabs the shoulders of someone he doesn't even know is there? I believe that either he lies in the incident or its a hue flaw in the show. Am I expected to believe that he was "putting on a show" when he grabs the air. That it was just a coincidence when actually was hold somebody. I don't buy it.