Shia 'I'm retiring from all public life' LaBeouf has been arrested for disorderly conduct and criminal trespass. Well, he was slapping strangers' backsides.

The (hitherto to be known as ) troubled actor was handcuffed and escorted out of a Broadway performance of Cabaret yesterday (26.06.14) after he reportedly began yelling erratically and slapping people's backsides.

A NYPD spokesperson told Us Weekly: "[Shia] has been charged with disorderly conduct. He was also charged with criminal trespass. While at Studio 54 he was upsetting patrons, being loud and yelling. He'll be jailed. There will be a court appearance for this matter."

An eye-witness, obviously trying to add drama to the situation said: "Shia seemed out of sorts (understatement). He was interacting with strangers during the show and slapping peoples' backsides. He was trying to avoid the police and fell. Then he was cursing at the police while being taken into custody.'

The 28-year-old actor - who has sparked fears for his mental health in recent months (more on that below)- reportedly had tears in his eyes as he was led out of the New York City musical, which stars Michelle Williams and Alan Cumming, during the intermission.

Another source revealed that the 'Transformers' star was 'harassing audience members, harassing actors on the stage, and chain smoking inside the theater.'

The bizarre incident comes after Shia declared he intended to retire from acting and "all public life" following "attacks against his artistic integrity."

He's has had a rough few months, culminating in him storming out of a Nymphomaniac press conference in Berlin before arriving on the red carpet for the film's German premiere wearing a paper bag on his head that read, 'I am not famous anymore.'

He was also forced to apologise for alleged plagiarism (in the sky) and starred in his own silent art installation in Los Angeles. It got mixed reviews. Oh, he also flew to London and headbutted some guy.

Meanwhile, stars including Girls creator Lena Dunham have been reacting to the news, as always, on Twitter.