I am amazed that nobody has yet mentioned Sooty! A certain President of the Naval Air Advisory Board (NAAB) and also Chief Instructor at RNAS Culdrose used to use a glove puppet of Sooty to deliver the bad news.
If Sooty appeared from below the desk during the interview you knew that you were going to be "chopped" - he never came out for just a Warning!
I always wondered why Sweep never made an appearance?