there's a German in your room

You were sitting in your room as usual and were on your phone.
It's summer 2026 now.
Before this, you were into war films, etc.
and so you went to the kitchen when you heard some rustling in your room
you lived alone
and so you took a kitchen knife in your hands and went to your room
You noticed a tied up German soldier (1940s) sitting on your bed (his hands and feet were tied so he couldn't move)