Oh boy. I get to tell a story that I've wanted to tell to HN forever. I grew up in no-where America, population 1,000, 100 miles from the nearest city of 10,000.
One day in High School a new teacher is hired in a quick hurry to replace someone who quit. The man shows up to teach biology wearing a NASA jacket and spends the entire first hour of class explaining all of the work he has done for the agency. He also insists we call him, "Dr. J, because I have enough class credits to have a PhD".
The story could be 100 paragraphs of weird twists and turns, but the short of it is that the guy was a total fraud and had only once volunteered for a citizen science project. One of the things about rural schools is that they're often desperate for teachers, so he got to hang around "teaching" biology until he threatened to shoot some kids and he was finally fired.