(http://www.junipergallery.com/sites/default/files/styles/large/public/SHORPY_00428u.jpg?itok=epEjBCJ8)
It was then union troops of New York's 'Fire Island brigaide' that inspired two things- Don't ask, don't tell and always point yer gun in a safe direction.
Upper right, top row, Corporal Zeke Preston, who on April 16, 1865 famously asked, "Well, EXCEPT for that, how did you enjoy the play, Mrs. Lincoln?"