In view of the spirit of comradeship shown between officers and men, this story is at least open to question, but it may have happened in some former war.
The lieutenant was instructing the squad in visional training.
Tell me, Number One, he said, "how many men are there in that trench-digging party over there?"
Thirty men and one officer, was the prompt reply.
Quite right, observed the lieutenant, after a pause. "But how do you know one is an officer at this distance?"
'Cos he's the only one not working, sir.