Is Amanda Bynes going through a meltdown?

The former Nickelodeon star locked herself in a West Hollywood dressing room for nearly two hours Monday, TMZ reports. Bynes, 26, was shopping at Los Angeles boutique Kin when she retreated into the room for an hour and 45 minutes, according to the shopping attendants who were present. A disoriented Bynes then attempted to leave with a bathing suit still on underneath her clothing. She also took a cab from the store.

Bynes' strange behavior has been escalating as of late. On Sunday, her car was impounded after she was caught driving on a suspended license by Burbank Airport Police at 8 a.m. Earlier last week, Bynes had been photographed smoking from a pipe in her car, also on a suspended license. This follows a series of reckless driving incidents, including two hit-and-runs and a DUI, in the past year.

Bynes' increasing driving troubles even spurred commentary from that other troubled former child actress, Lindsay Lohan, on Sunday. "Why did I get put in jail and a nickelodeon star has had NO punishment(s) so far," asked Lohan, also 26, on her Twitter page.

Despite what others around her are saying, Bynes is insisting she does not need help. ("She needs to stop drinking and driving... she needs help," uncle Ronald Bynes told Celebuzz). TMZ reports that Bynes is denying a substance abuse problem and any mental health issues, and claims that her driving charges are being blown way out of proportion.

Her current attitude reflects what she had been saying since last spring. On May 27, Bynes spoke out on Twitter: "I can't help but laugh at all of you writing fake stories about me... I was not in any hit and runs. I don't drink so the DUI is false."

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  • Lindsay Lohan

    Lindsay Lohan's latest fender bender -- smashing into the back of an 18-wheeler -- is just the latest mark on her less than stellar driving record. In July 2011, Lohan was involved in an alleged hit-and-run, though charges were never filed. Perhaps it's time for <a href="http://www.huffingtonpost.com/liz-smith/lindsay-lohan-should-not-drive-liz-smith_b_1589293.html?utm_hp_ref=celebrity" target="_hplink">Lohan to hire a driver?</a> Lindsay's latest string of traffic busts comes after her 2007 DUI arrest.

  • Amanda Bynes

    Although this former Nickelodeon star claims she doesn't drink, <a href="http://www.huffingtonpost.com/2012/06/06/amanda-bynes-charged-dui-barack-obama_n_1573423.html" target="_hplink">Amanda Bynes was charged with DUI</a> after she side-swiped a cop car in early April. But the actress' poor judgement doesn't stop there. Just days later, Bynes was involved in an alleged hit-and-run, although no charges have been filed.

  • Charlie Sheen

    Charlie Sheen may not necessarily be a bad driver, but he doesn't have great luck when it comes to his four-wheel friends. In 2010, one of Charlie's vehicles was found at the bottom of a cliff and <a href="http://www.tmz.com/2010/06/15/charlie-sheen-car-over-a-cliff-hollywood-hills-stolen/" target="_hplink">not four months later the <em>same</em> thing happened again</a>! Both times the vehicles appeared to have been stolen and rolled to their rocky demise.

  • January Jones

    Although we can partially blame this one on the hounding paparazzi, January Jones might consider enrolling in a few driving obstacle courses. While being chased by photographers in West Hollywood, the actress lost control of her vehicle, colliding with three parked cars in the process.

  • LeAnn Rimes

    LeAnn Rimes wasn't the luckiest of gals in 2009. After a minor car crash in August of that year, just a month later the singer was trying to escape shutter-happy photographers by stepping on the gas (are we sensing a pattern here?) -- <a href="http://www.people.com/people/article/0,,20305599,00.html" target="_hplink">too bad she accelerated into the car in front of her</a>.

  • Britney Spears

    She certainly isn't going to earn any "Mother of the Year" awards <a href="http://www.people.com/people/article/0,,1157153,00.html" target="_hplink">after infamously driving with her baby on her lap in 2006</a>, and it appears she's also a black sheep when it comes to the rules of the road. Spears reportedly left her car unattended in the middle of a road after getting a flat tire in 2009. The singer has also been "charged with a hit and run, driving without a valid license, and was under fire as well for running over a paparazzo's foot," <a href="http://www.thedailybeast.com/galleries/2010/07/07/worst-celebrity-drivers.html#slide7" target="_hplink">according to The Daily Beast</a>.

  • Enrique Iglesias

    There's only one way Enrique Iglesias could ever turn <em>off</em> a fan -- by running over their foot with his car! That's exactly what the singer did after a 2007 concert. Iglesias' vehicle (his manager was driving) was swarmed by fans after his concert and, in attempt to evade the crowd, the pair accidentally ran over an 11-year-old girl's foot.

  • Nicole Richie

    Nicole Richie's drug-induced state of mind had her driving down the wrong side of the freeway (!!!) in 2006. But since then, <a href="http://www.huffingtonpost.com/2012/05/10/party-girls-to-momtrepreneurs-celebrity-moms-cash-in-on-motherhood_n_1507275.html" target="_hplink">Richie has gone from wild child to "momtrepreneur</a>."

  • George Michael

    You'd think that a two-year driving ban might might make you crack open your "Rules of the Road" handbook, but that's not the case when it comes to George Michael. The singer had his license revoked in 2007 after driving under the influence of drugs. And three years later, Michael <a href="http://www.huffingtonpost.com/2010/07/06/george-michael-crashes-ca_n_636025.html" target="_hplink">crashed his Range Rover into the front of a London camera shop</a>.

  • Billy Joel

    Billy Joel is among the celebrity set to have more than a few crashes on his record. In 2002 the singer set off a string of collisions. The second accident involved a tree and the third, a house.

  • Mischa Barton

    Mischa Barton is nears the top of the chart when it comes to worst celebrity drivers. In 2007, <a href="http://www.thehollywoodgossip.com/2007/03/mischa-barton-is-a-bad-actress-and-a-bad-driver/" target="_hplink">she got in a minor fender bender while driving Nicole Richie's car</a> in Los Angeles. Not even a month later, Barton's vehicle stepped into ring with a parking lot gate. When the "O.C." actress caught her bumper on the gate she kept driving, ripping it clear off! Later that year came the ultimate driving no-no. <a href="http://www.tmz.com/2007/12/27/mischa-barton-busted-for-dui/" target="_hplink">Barton was charged with DUI</a> after she was cruising in two lanes at once and failing to use her traffic signals.