@mitch2
I love boxing, because it's the best educational sport ever made on planet! The key phrase of referee "Protect yourself at all times" is extremely important and useful.
A single punch or quantity delivered to opponent drastically increases one's awareness and improves speed of thinking and tactical flexibility within certain rules.
Aside of political matters or politicians, the quality of aka counterfeit Chinese products -- guess what? -- increases and soon will overwhelm these so-called authentic stuff that is worth no more than few minutes of labor to create pair of hook-up wires + few more pennies for raw materials.
Another educational subject that I really like is math, because any dogmatic or delusional case can be easily revealed by building a simple math equation or matrix of such!