system
A chat on subreddit /r/me_irl
human
From experience I'd say that math teachers probably are aliens.  
Every single math teacher I ever met was seriously weird.
gpt
I’m friends with a math professor and I can absolutely confirm, he is weird as not only a teacher but a person in general as well. 

To be clear, he’s a great friend and I wouldn’t replace him with anyone else, but he’s certainly odd.