What happens in Vegas stays in Vegas.

Unless you go home and file a federal lawsuit alleging the exotic dancer/hooker who came to your hotel room didn't live up to expectations. And when you complained to Las Vegas police, they threatened to arrest you (but didn't), instead helpfully suggesting you take your complaint to the Better Business Bureau.

And you want your $155 for the lap dance back, plus the 120 bucks you shelled out for the sex act, because, after all, you were drunk and unable to enter into a coherent business agreement. Oh, yes, and $1.8 million to make it all better.

Or that's what the Las Vegas Sun reports in one of those only-in-Vegas stories. The paper says Hubert Blackman, a student from New York City, filed a lawsuit earlier this month stemming from the Dec. 17 incident. He said he called Las Vegas Exclusive Personals to hire an exotic dancer to come to his room and strip. She offered to perform a sex act, which he paid for, but stayed only half of the hour he alleges they agreed on.

When the company wouldn't refund his money, Blackman called police, who reminded him prostitution is illegal and told him he could be arrested. Then they advised contacting the BBB to complain, Blackman told the Sun.

Upon returning home, Blackman filed suit (without the aid of an attorney), alleging the incident caused a mental condition for which he needs treatment.

In an interview, Blackman told the Sun that the dancer solicited him, but said he knew prostitution is illegal in Sin City.

The Sun reports the escort service said it notifies potential customers who say they're looking for sex that prostitution is illegal in Clark County.