Burl, I remember bits of another song to the tune of Lili Marlene we used to sing in the Gunners in the 60's. Was it around in your time?

Early in the morning, getting on parade
The Battery Sergeant-Major sang the "Donkey Serenade"
Some silly bugger said "Right Dress!"
You should have seen the bloody mess
We are the Royal Artillery, we are a bloody shower.

Driving down the Autobahn at sixty miles an hour
We are the Royal Artillery, we are a bloody shower.
Some silly bugger gave a cough,
The motor burst, a wheel dropped off
We are the Royal Artillery, we are a bloody shower.

I would guess the second verse makes it post-war BAOR in origin.

Wassail! V