Should most of the human population ever find themselves in the throes of war, most of the human population will probably have a pants-related accident on the battlefield. It's no surprise to learn, then, that soldiers defending both Old Glory and the Stars and Bars in the American Civil War felt the need to make bum chocolate at the most inopportune times.
Praise the lord for one utterly bizarre ruling that forbid killing anyone (even if they were, y'know, about to kill you too) if they were using those bloody battle lands as a portable toilet. That's right: soldiers from both the Confederate Army and the Union had to play a waiting game if the enemy was going about their private business.
The actual wording used was that shooting was "forbade while attending to the imperative calls of nature". All is fair in love, war and sh*tting doesn't have quite as nice a ring to it. No pun intended, honest. The world is a weird, weird place at times.