I used to live in one of huge those old houses (converted into flats) with tiled steps to the front door, the slippery black and white ones.
One night I went to take the rubbish out. It was dark and not raining, however it must have rained earlier. Anyway off I went, gaily swinging my bag of rubbish in my hand.
I reached the top of the steps outside the door and slid, upright until I slipped off the edge, then bumped all the way down to the pavement one step at a time, on my arse. Landed on the wet pavement in a heap with blood pouring from a cut on my arm, still clutching my bag of rubbish as if my life depended on it and sat there praying no-one would walk by or look out of their windows and see me. And the pain, I couldn't move.
I finally managed to let go of the bag of rubbish and dump it in the right area and crawl back into the building, leaving a trail of blood behind me. My backside and lower back was painful so I went up several flights of stairs like a crab, (to the 4th floor, lots of steep stairs, building had high ceilings so the floors were further apart and went round corners too if you see what I mean) still dripping blood on to the carpet which luckily was red.
For many days I couldn't sit down properly as I had a blue bum and lower back and a gash in my arm which meant I couldn't push myself off a seat or out of bed, had to roll on and off and was still crawling up and down stairs like a crab, kind of sideways.