I remain flabbergasted by the concept of my grandmother tripping and dying. She only had one head impact, a single bruise in the lower left corner of her head, not even a fracture. There were only a few steps after the bottom landing where she fell. It is inconceivable to me that she could have let herself fall backwards. To fall back with that hard an impact, her feet had to slip forward, as if someone pulled a rug out from under her.
The fact remains, every day is a gift.