Comment by QuiDortDine
2 years ago
Simpler but funny tech support anecdote: at some point, someone called me over and said their keyboard would print the letter 'e' repeatedly. I tried another keyboard of course, and it still did it! Rebooted the computer, still 'e's all over.
Finally, I looked at her mouse: it was half of a wireless mouse-keyboard combo. Turns out, the keyboard hadn't been turned off before it went in the pile, and other keyboards on top of it were pressing its keys, or rather just the one key.
Bluetooth devices are the worst for this. I had a very similar case where the letter "z" would randomly be pressed. Same case of random Bluetooth keyboard in a pile. More obnoxious though was a Apple Mouse that kept trying to connect to one of our work stations. It over and over would pop up a dialog saying the mouse wants to connect. It would happen usually in the morning and last a few minutes during which you in essence couldn't work. There was no way in macOS to have it remember the decision to not connect. When we tried to just pair with it too get rid of the dialog it would fail. We never solved this one. It just stopped happening one day.