Lindsay Lohan's Topless Tweet Latest in Bizarre Behavior Bonanza

Lindsay Lohan’s behavior continues to spiral downward as the actress has been placed in more and more compromising positions, the latest of which is completely her own doing.

On Tuesday, Lohan sent a scary skinny topless photo of herself to her Twitter followers with the caption "OLD PHOTOS. I'm THAT bored."

This followed a weekend in which Page Six spies reported seeing the 22-year-old partying in Southampton with her younger brother and having security guards delete photos of her taken by partygoers, before changing scenery and behaving “extremely oddly and erratically” at the New York City club The Box at 4:30 a.m., where she reportedly spent some quality time with its stripper pole.

“She walked up to a tall, handsome guy and asked him a question,” a source told Page Six. “When he said he didn’t know the answer, she lost it and started yelling and cursing a flying around the room. She was not acting normal.”

But even more troubling are claims that the “Mean Girls” star may be involved in a troublesome jewelry heist.

On June 6, Lohan was posing in a spread for an Elle magazine photo shoot wearing $400,000 worth of Dior diamonds in England. When the jewels went missing shortly thereafter, Scotland Yard promptly announced an investigation in the matter, which is likely to involve a questioning of the actress.

"There have been no arrests at this stage," a police spokeswoman said. "We will speak to a number of people in connection with the inquiry."

The investigation will hardly be Lohan’s first brush with the law. Last year, she reportedly left a New York club with another woman’s mink. In May 2007, she was arrested after cops found cocaine in her car, and has also served jail time.