Warning bells go off in my mind if a girl seems desperate, especially if she is attractive.
Only once have I met a very beautiful girl with a great body that seemed desperate. Alarms were ringing in my head the whole time. We met at a bar, but she didn't seem like a pro. She gave me her number, and I figured what the hell and we went on a date mostly because she was a lot hotter than what I can usually attract, despite the strange desperation vibe she was giving off.
The date was going pretty well, although she said some things that seemed very conspiracy theory-ish.
Finally towards the end of the date she admitted to me that she had just been released from the hospital for paranoid schizophrenia a few months prior to meeting me, her whole life had basically come crashing down, she had no job anymore (she was college educated and had a good job), and was now on disability and living with her parents again.
Never heard from her again.