Whoever said those who can't do, teach --- must have been a guy who had no education.
I have been there and done that.
After 25+ years as a software developer/engineer I have had it. I work for myself as a consultant. The pay is good but I am now tired of programming. I mean I am really tired of it. I want to share and handover some ideas to kids out there. Teaching is a lot of fun but lots of admin work too.
I still have consulting work but I like to tone it down. I like to interact with people now, not with machines. So this semester I am teaching for two regional universities who have their presence in my city. Universities are discovering there is money to be made from foreign students. So even if they are from out of town they look for city partners which can give them access to big cities like mine, where the people are and where foreign students would rather settle. So in my classes, I kid you not, all of my students are foreigners, majority from East Asian origins.
So today I had a long day lecturing. One of my students sat in the corner. I allowed him to listen from time to time as he played with his drink bottle and some paper envelopes.
When it was time to go home the students said good bye and he passed by my desk. As he walked away - he showed me his drink bottle wrapped in envelopes. As he exited the class room, he said - "look sir, I made a bomb", then he walked off. His name is Muhammad.