[philman_36]

Red shoes?
Paint the walls on wooden ships red so you don't see the blood as much in combat. ( Internally, they were painted red.)
Same principle with shoes so others don't notice when they leave?

[mkmensinger]

“Paint the walls on wooden ships red so you don’t see the blood as much in combat.” And why the captain always wore brown pants. :^)

[ichabod1]

I believe that’s why the British used to wear red coats as well.