I had a high school history teacher that was. Instead, an idiot. Things like getting the date of President Kennedy’s assassination wrong ( confused it with his brother’s) and wouldn’t admit the error. I stopped attending class and finally the guidance counselor arranged for me to a paper in place of the attendance. I did a long paper on the design and construction of nuclear weapons equivalent to Fat Man and Little Boy using open sources. I didn’t do too bad - got an A from the idiot and when I recently found a copy and double checked my work (lots more open now than in 1980) I found the gun type Uranium bomb would have fizzled but the implosion bomb was correct and probably would have had a higher yield than I’d originally guessed. Looking at the North Korean test results makes me wonder WTF they are really doing since they are the only ones, ever, to fail like that.