You should just stand outside his house and stare at his window for like an hour. Every so often talk into your wrist watch and squeeze a shirt button like it was a camera. When he comes outside run away.

Tell him you're learning so you can spy on them....

weird combo to take as languages.

Tell him you're taking them so you can spy ON the enemies. If you were spying FOR the enemies, you would already know the languages.

So I guess it's up to you to realize that he's a little mentally off and find ways to deal with it. Perhaps he was a WWII vet and his discomfort and irrationality stem from that time?

Surely that would make you an American spy? Spies need to learn the language of the country they need to pull info from. Not the country they give the info to. They've got translators for that, if necessary.

He might have PTSD. My grandpa had it. Or he's just crazy. But anyway fyl

we don't offer German in our school :(

It makes sense who takes German and Japanese unless they want to be causing some trouble.

Tell him that you plan to spy ON the germans and japanese and that is why you are taking those courses.