One guy did use a plane to land in Red Square. Remember him?
Definitely a "character", even if medically sound enough to stand trial.
PS: He was dumb as hell too of course, and it was only due to incredible laxness of the air force that he was never shot down.
You're more likely to get hassled when you land like the Ethan Guo guy (https://www.bbc.com/news/articles/c04rql923kdo)
PS: Don't forget the Soviets knowingly shot and killed an entire airliner full of people. I saw an interview with the fighter pilot later and he didn't even have remorse for what he was doing, "just following orders". What a monster. But that was pretty typical there. Anyone with a backbone questioning orders was already dying in a gulag.