I've been told that computers have given their owners tons of grief... right up to the moment they considered calling me (I was their IT support)... then they worked correctly the rest of the day.
I always carried a Leatherman tool, and was unafraid to open a computer at a moment's notice. I ruled the computers by fear. ;-)
On the other hand... one of the people I supported did exactly the right things to her computer as I watched... and it didn't work... I recommended she avoid computers, and she's now a very happy motivational coach.