Actually, I inquired of 2 of my food servers in the dining room. One jokingly acted as if she were afraid of me and the other suggested I had too much fun in port that day. I was not offended. I realize they most likely have been instructed to discourage any one suggesting any possibility of haunting or ghosts.
It didn't change my mind at all. I do not drink or use mind altering substances and I never experienced "hearing voices" before.
It is nice to get a compliment. Even from a non-corporeal.