When I was 19 I was working in a Veterans Hospital in the laundry, I bent over to push a laundry trolley up a ramp and put out a disc in my lower back, I was sent to the staff doctor and was told to take a seat and wait for my turn, the waiting area was full of young nurses just starting and had to have a medical for employment, I gingerly sat on the edge of the seat and pushed myself back so I could support my back, what sounded like a brontosaurus farting filled the room as my bum slid along the vinyl seat cushion, looking up, every eye was on me, who will believe me if I said it was the chair? I looked back down at the floor and didn't make eye contact with anyone till my name was called.