For some unfathomable reason this subject tickles my ribs. I can only offer this ‘very slightly off-topic’ addition.
Military airbase, mid 70s, deepest Oxfordshire. Erk leaves management radio on wheel of VC10, waves said 10 off, looks around, sees radio and says, ‘Oops!’
Radio packed off to 3rd line maintenance with job card reading, ‘Flat Battery.’
Or so the story goes.