Three years ago, Brian and Dorothy McGurk of Staten Island, New York, got divorced. Dorothy said Brian needed to pay alimony because she was injured in a car accident in 1997 that left her too injured to work.

The courts agreed, and Brian was ordered to pay Dorothy $850 per month, every month, for LIFE.

That sweet, sweet deal just IMPLODED on Dorothy . . . because Brian was searching online and found that Dorothy WASN'T too injured to work. In fact, she was working NIGHTLY as a BELLY DANCER.

And she was dumb enough to keep a BLOG about it, posting updates almost every day, with photos of herself dancing.

She'd even write things that totally contradicted her injury claims like, quote, "Today as I danced myself silly, I lifted my head and elongated my neck as I swirled around. And then it happened, I got really, really high."

Brian and his lawyer presented the blog to the judge. She called Dorothy in. Dorothy told her that a DOCTOR had PRESCRIBED the belly dancing as a treatment for her injuries. The judge called in the doctor. He had not.

And Dorothy was hit HARD. The judge stripped her of the $850-a-month . . . ordered her to pay all three years back . . . also ordered her to pay Brian $5,000 plus interest for lawyer's fees . . . AND awarded the couple's house back to Brian

credit goes to the New York Daily News