You know those things that people use who have a hard time getting around, a walker? The things with tennis balls?
I had to pick up one of those and move it today. Then with it still in hand, I opened a door to turn off a light and turned and bumped it with my legs. I crunched against it and was afraid I might trip, but I was OK.
I had a very bad thought that I could've gotten hurt by a walker and then I would need a walker.