I graduated in physics in 1976, went to medical school and am now an ophthalmologist doing research in tropical eye diseases. HMC was a great education - can't say I really use a lot of physics, and I'd choke if I had to do a Fourier transformation, but I do rather enjoy optical problems (unlike a lot of my colleagues) and I repair the odd broken instrument...

I love teaching (but then, I learned from the best), and love my research - it's trying to do both all the time that I am finding taxing.

I use my physics knowledge to allow me to quickly grasp the underlying principles of whatever problem I am dealing with, allowing me to gain a working knowledge without getting bogged down in the details. It is this ability to be something of a jack-of-all trades (or a technical general practitioner as I prefer to think of it) that makes me valuable to the employer. Physics is the ideal background for this. In fact, as one goes up the management chain of this company, one finds that it is physics-heavy, as these are the people who have the ability to grasp the underlying concepts of a problem- which is what I think physics is all about. Hold the line when it comes to those things that traditionally make HMC great. That I was taught in small classes entirely by English-speaking PhD's who actually had office hours and didn't treat us an annoyance stands in stark contrast to the undergraduate experience of most of my peers.

Physics majors can certainly go on to do all kinds of strange things, even public policy and international affairs:

https://elliott.gwu.edu/pace

Physics training has been an invaluable aid throughout my career despite my grade in quantum mechanics. : >