It did take forethought to unlock the drawer to retrieve the second gun. Reaction would have been having a pistol holding 17 rounds and firing 16. Not sure about him walking after the first viewing of video though.
"The bended knee is not a tradition of our Corps"-LtGen. Holland M "Howlin' Mad" Smith, USMC,1949
Have you forgotten yet? Look down and swear by the slain of the War that you'll NEVER forget. [Siegfried Sassoon,"Aftermath,"1919]