Not. A. Nazi.
No, but seriously, A friend and I once had a competition to see who could get someone else to believe the most outrageous thing you could think of.
I once tried to convince a kid that I was famous in Norway.
I once convinced a freckly redhead that she was of torres-straight islander origin for an AIM test (government benchmarking thing). There was some niggling doubt so she asked the teacher if she was. He just shook his head sadly and walked away