Have you ever met or known someone who has the same name as you (first and last) but is not a relative?
When I was 18 I lived in a rooming house in Brighton MA. I was in room 11. Just upstairs, room 21, was another Jennifer E. Thomas. It made for confusion about mail. We would meet every evening in the foyer to trade envelopes. She was kind of snippy about the whole thing, almost like she was offended I dared move in below her and use her name.