WARNING
KLYSTRON GENERATOR
DO NOT REVERSE POLARITY
If you look above you, you will see the Klystron Generator. On it is marked "KLSTRON GENERATOR. DANGER, DO NOT REVERSE POLARITY." Polarity reversal is a very dangerous procedure, that's why we tell you not to do it. However, in the unlikely event of entering a polarity reversal situation, we ask you to follow this simple drill.
STEP ONE: Put your hands in the air.
STEP TWO: Place your hands on the cranium.
STEP THREE: Press in a downward motion.
STEP FOUR: On the command 'Polarity Reverses', equalise
your external equilibrium by exhaling thus - phew!
Music is "SHAKE, RATTLE AND ROLL"