Honestly,
The one bar I used to frequent has a female bar tender who truly believes not only in alien or extraterrestrial life forms... but she is convinced to the core that she is one of them.
She has alien tattoos all over herself, she talks like a nut case half the time and she is convinced that she is always the smartest person in every room.
For a short while I got a kick out of hearing her talk about these things, but it does get old and annoying before long. I took it more as a ruse or her way of entertaining others, but I came to realize that she believes this and she obviously has some issues in her pretty head. What a shame, she is hot! But the hot/crazy scale couldn't remedy the level of crazy.