TTN, talking of SWO during initial training reminds me:
I did something wrong one night but he gave me some officer hints and let me off. Never forgotten that lenience is also a useful tool.
He also used to march alongside the entire contingent of the school as we marched - he would start at the back and march, in-step, until he reached the front of the contingent. All this while marching backwards!
I borrowed some kit after graduation and returned it a couple of weeks later before the nav school started.
I was in civvies, IIRC, and he was drilling a course. He brought them all to attention, announced in a loud voice, officer present, and threw up an immaculate salute. One brand new APO duly doffed his hat!
Style.