My husband. Physics major. Software engineer. He’s been inventing things since he was a child, even took over part of the family barn for a workshop.
His mother spent nearly five days telling me how awful he was to live with, how methodical he was. I kept saying “I know.” Now when I tell her that he spent four months making our then 7 year-old nephew a set of woodworking tools from antique stock, she only says, “I told you.” Smart woman.
Years ago we were overseas and had dinner with his boss. They talked a lot of gobbledygook and finally I asked whether this came pre SIT or pre-UAT. His boss’ jaw dropped and he asked if I understood what they were talking about that whole time I’d been ignored at the dinner table. I said, “I only know enough to help my husband get his next job.”
Ah, well, the manners pundits wouldn’t approve but it was apt at the time. Cheers, Dee
Cooking with Dee 
Systems Integration Testing and User Acceptance Testing (SIT and UAT), fyi. You learn a lot living in this household! D
And years ago when we wanted a child his first question was, “can we blow stuff up?” I said yes, as long as they were at least 1/2 mile from the house. Preferably downwind.