If you were to teach a class, what would you teach?

Basic Common Sense about Credit and Collections.

Auto mechanic fuel injection and how drugs and alchohol will destroy your life

Mind ninja'ing . I'm an excellent mind ninja ! Cos I said so.

I taught a class in creative writing for a few years.
And I taught square dancing for a couple of years. Lots of fun.

Back in the early 1990s (before Windows came on the scene) I taught the people in our office how to use PCs (DOS was NOT lots of fun but we got there)

And when I was doing my military training I gave lessons in how to play poker, blackjack, and Ricketty Kate to the guys in my platoon. Of course, we didn't think of it as lessons -- we were just gambling -- but it paid my expenses for a few months.

But all that doesn't answer your question, which was, What would I like to teach? That would be Humour 101 -- How to laugh your way through anything Life throws at you.

1. Basics of Tie Dye
2. Advanced Tie Dye
3. The Art of Eating Pizza While Wearing Tie Dye

I taught Kenpo for years, and could again were I able to commit the time necessary. My interests have changed greatly toward leisure since I retired. Travel, fitness and reading take up much of my time now. I also indulge the odd opportunity to tap out incoherent responses to suspect Q&A sites....

I'd be helping amputees get used to new prosthetics and help them learn to adapt, especially kids. I'm not sure what you'd call that. Maybe more of a supportive role for me, I guess.

I will be teaching a class some day, either at the high school or college level. I'm not entirely sure which subject I would like to specialize in, but it will most likely be English and literature. I could also possibly teach Latin or Linguistics, all subjects that I am proficient in. Yes, I realize these aren't "practical" subjects, but I'm more of a theoretical person anyhow.

Suicide Prevention

Probably lower division college biology.

Perhaps lower division college chemistry also.

Canid genetics and physiology. Canid behavior.

I could probably handle undergraduate evolutionary biology.

Ethology, of course.

I don't know how good I would be at teaching though as most of my career was working as a field biologist for states and the Federal government.  I did tutor a bit after retirement.

Shorthand .... It still comes in handy for taking notes :)

English dark ages history, fascinating. AND I could make it appealing to anyone possessing an imagination and a sense of history.

Failing that it would have to be the "gee whiz wow" of the (almost) insanity of astro-physics.