I met a Chinese man who told me his name was Abe Schwartz. I asked him if he was Jewish to which he replied that he wasn't.
"How did you get that name? Did your mother marry a Jewish man?"
"Of course not! What happened was, when I came to this country and was standing on the immigration line, the man in front of me was named Abe Schwartz. When it came my turn, they asked me my name and I said, Sem Ting"