Ok then - here is another non-walking example!
I was helping my sister do up a new rental property. A cupboard unit had been moved from its old position blocking light from the kitchen window, to a more sensible position in the corner of the kitchen. I then moved the washing machine into place and connected up its pipes.
So ... if you are anything other than a total short*rse, when about to stand up straight from a bent-over posture, don't forget that the formerly empty space on a wall directly above a washing machine is now in fact occupied by a big cupboard with a sharp corner!
For bonus points, don't do it when 6' 1" tall and taking anticoagulants which mean that any head injury could lead to fatal bleeding on the brain!
(Fellow CycleChat members may recall that I went out next day and cycled up a steep Yorkshire hill to meet friends at a cafe. One moment I was ordering coffee and cake, and seemingly a few seconds (but actually about 10 minutes) later I came round in front of a very concerned crowd. I survived the concussion but had headaches for a week.)