Don't stick your hand/arm and left foot in a doorway and hold onto the frame. You even grabbed that chairback with your right hand while becoming disorderly. That is a defensive tactic that can into offensive in an instant. Not a good look Marine. As a veteran M.P. I can tell you that you never conduct yourself in any setting, in that manner when in uniform, EVER. You know better !! Doesn't matter what branch of service you are currently in or have served in. You caused your own injury because you resisted and put yourself into that situation and caused that injury. State your case, present your point of view in a civil calm manner that commands respect & honor, then walk out with dignity and professionalism.  Your actions impugned the integrity of yourself, the United States Marine Corps and that E-5(Sgt) rank on your sleeves.

If that Marine wants to protest, he can join the crazy blue hairs , but Not while wearing the uniform.