Comment by ubermonkey

"which was perfectly correct for someone not being used to computers."

I disagree.

Even someone with no experience with computers understands, generally speaking, that the mouse is tracking the surface of the desk somehow. I have had this conversation many times (or did, back in the 1990s when mice were more novel for most people). Nobody picked it up.

The ones who do in these anecdotes are, IMO, examples of the sort of people who absolutely shut their brains off in protest when asked to work with new tech. I have been blessed in that I have only very, very rarely been asked to work with or even know such people.