Many, many years ago, an old friend, engineering school classmate and fraternity pledge brother, after we left undergraduate school, went to Hopkins to get his Ph.D. in physics, ultimately becoming a world-renowned professor, working out of the faculty at Cornell. His father was a section foreman on the C & NW and head of his union shop and he had been raised in a very practical, construction and repair oriented household.
The first time I went to visit him after he started his graduate work at Hopkins he was busy with a screwdriver fixing some equipment in the lab.
He remarked that all the troubleshooting and repair fell to him since he seemed to be the only one in the program who knew how to use a screwdriver.
That's funny! I was partly running a department assembling industrial machine control panels in a job one time. We got some complaints after the equipment arrived at the customer that a lot of the screws were loose. My boss, the owner of the company, asked me if I showed the wiring guy how to use a screwdriver. I just stood there and stared at him. I couldn't imagine how to respond to a question like that.
..or pick up a soldering iron by the right end.