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Season 12: Kym Johnson takes 5 years off of our lives
Did we call Maks and Kirstie's fall nerve-wrecking? Never mind. Even though we knew she was OK and it was from a rehearsal filmed days before, the reveal of Kym Johnson's ambulance-requiring injury is the most devastatingly scary wipe-out we can recall seeing on reality TV. (Seriously, we can still hear the sound her neck made.) How anyone could come out of that move with full use of all their limbs remains a mystery.