A little know fact that is glossed over in the majority of history books I read about the battle of Agincourt.
From Juliet Barker's book 'Agincourt: The King, the Campaign, the Battle' :- Many of the English and Welsh archers were suffering from dysentry, and were reduced to removing their soiled breeches and undergarments in an attempt to allow nature to take its course more easily ie not wearing anything from the waist down — an option not available to the men-at-arms, encased in their padded steel plate suits, they just had to 'go' in their armour. Grim though the sight of them must have been, the smell was probably worse.
Imagine being a French knight,being attacked by naked from the waist down archers, followed by men at arms with poo squelching out of their armour - they don't teach that in history class.