After getting arrested for a DUI last month and wreaking havoc in New York City all week, Amanda Bynes has now been accused of shoplifting at Barneys New York on Madison Avenue.

Bynes allegedly walked out of the store wearing a $200 hat, at which point security grabbed her and took her back inside. Witnesses on the scene tell TMZ that the 28-year-old starlet was "acting crazy," but the 28-year-old starlet reportedly told security guards she was being chased by fans inside the store, so she grabbed the hat to shield her face. Bynes added that she had no intention of stealing the merchandise, so security let her go before the police had a chance to question her.

It's not clear whether Barneys will press charges, but they made the Easy A actress sign a no-trespass agreement, which bans her from entering the store again. If they do press charges, Bynes could be in BIG trouble, because not only was her recent DUI bust a violation of her probation, but this latest offense would be yet another black mark on her record. Way to pull a Lohan!

So what else is going on with Ms. Bynes? The other day she bumped into a reporter for In Touch, and she told them she believes she has a microchip in her head. Yes, really. "I want a dollar a day from every person who [is] reading my mind,” she said.

So what about her parents, Rick and Lynn? "I was miserable living with them," she says. "I would have rather been in jail." Well, she's free for now, but she better watch it, because if she keeps having run-ins with the law, she might actually find out what it's like to go to the pokey!

"Amanda is just headed down a very dangerous road,” a source tells Radar. “Her parents are surprised that she hasn’t been arrested in New York City yet … though Rick thinks a long stint in jail would be the best thing for Amanda.”

"Lynn had been making plans to go to New York City because she had been growing so concerned about Amanda’s bizarre behavior,” a source tells the site. "Rick was opposed to the visit and thought it would be a waste of Lynn’s time and their money because there is nothing she can do to help Amanda. Amanda would likely refuse to see her anyway — and that would be if Lynn could even find her."