Not quite 'on thread' but seeing as stairs have been mentioned ...
I recall the inaugural Polar Air flight into MAN .... the aircraft pulled hard left to park on Cargo Ramp and I assume there was a slope as he had to engage a bit of thrust .... not taking into account the aircraft parked behind him at the Pax Terminal ...
A set of steps that had been full of boarding passengers only minutes before were blown over completely ... luckily no-one was injured
Being a mere 'freightdog' I never did hear what happened !