Not an ACR but an Exercise Report (cannot remember if that was a "Sheet 3" or a "Sheet 9") in the 80s, on a student - picture a bright hard clear morning on Salisbury Plain. Eight studes in a merry chatting group striding across the frosty grass: several yards behind is on droop shouldered stude carrying 4 pine poles and some rope - you guessed - he was "leader". Report started along the lines of "Officer Cadet Bloggs is wholly unable to impress his meagre personality on his fellows." It went on in similar vein. Ultimately Bloggs was chopped, and went to work in the Health Service......................
Also had one stude who on being asked to comment in leadership terms on the exercise he had just led, responded with "It went very well, Sir, except where it went wrong". Which it had, spectacularly.