Re Elsans, I recall Dad telling me of one of his chums in Bomber Command who took to throwing the Elsan (and contents obviously) from the plane during raids.
Bomber Command finally got a letter from the Red Cross in Geneva asking them to stop bunging out the things because they were classed as chemical weapons and thus banned. It was okay to carry on dropping HE though.
I presume this is an old yarn and has no truth to it, or am I wrong?!