“That’s not how it works, Mom. Jeeze, even a little kid could figure this stuff out.” I had come to visit my mother for the weekend and while I was there, she asked me to set up her new television for her. I was trying to explain switching between sources and got a bit frustrated. “Watch your tongue! You’re still not too old, you know.” Mom looked seriously annoyed, and her tone told me to not anger her further. “Fine. I’...