New York New York sports fans often go a little crazy, whether in celebration or despair. So it should hardly make news when a baseball fan is thrown out and arrested at Yankee Stadium, the home of New York's most famous sports team. Bradford Campeau-Laurion was certainly in hostile territory - the 29-year-old Queens resident dares to be a fan of the Boston Red Sox, who were playing the Yankees on the fateful night of August 26. But it wasn't his sporting affiliation that got him into trouble - it was his attempt to take a toilet break while God Bless America was being sung during the seventh inning stretch. According to a letter Mr Campeau-Laurion wrote to the popular Gothamist news blog, when most people stood still to salute the song, he tried to rush to the bathroom. But he was told by a police officer to stop and wait until the end of the song. 'I responded that I had to use the restroom and that I did not care about God Bless America. As soon as the latter came out of my mouth, my right arm was twisted violently behind my back,' Mr Campeau-Laurion wrote. He said he was escorted to the exit by two police officers and his ticket was confiscated. He said one of the officers told him to 'get the hell out of my country if you don't like it'. The New York Police Department explained that Mr Campeau-Laurion was thrown out because he was 'standing on his seat, cursing, using inappropriate language and acting in a disorderly manner', which Mr Campeau-Laurion denies. The facts of the matter are still to be examined - with several witnesses giving different accounts, some supportive of Mr Campeau-Laurion and some of the police. But it is not a secret that Yankees officials do restrict fans when the patriotic song is sung as part of the programme at all games since the 9/11 attacks. Chains are put on the main aisle and fans are asked not to move by ushers and security. According to protocol, civilians should stand up and put their right hand on their hearts for the national anthem, The Star Spangled Banner. But there is no such compulsion regarding a patriotic song like God Bless America. 'Unless you are going to compel respectful behaviour towards Take Me Out to the Ball Game, you shouldn't be allowed to compel respectful behaviour towards God Bless America,' said David Fischer, of the think-tank Centre for an Urban Future and a baseball fan. 'I would be really surprised if the person didn't sue the Yankees and win his suit.' Legal experts are in dispute over whether the Yankees have violated the First Amendment. Michael Dorf, a constitutional law professor at Cornell University, told The New York Times last year that the Yankees is a privately owned team so it doesn't violate the constitution by restricting fans during the song. But civil rights lawyer Norman Siegel said if Mr Campeau-Laurion's account is true, the law is on his side. Mr Siegel was involved in a case in the late 1980s when Yankees security confiscated banners from fans that denounced George Steinbrenner, the owner of the team. He reached an agreement with the stadium that as long as the banners did not block the view of other people, fans could wave them. 'This one is easier. There was no disruption,' said Mr Siegel. 'It doesn't mean we have to agree over what he said about God Bless America, but we have to respect his individual right not to participate.' Yankees spokesman Jason Zillo said there were no plans to withdraw the song. He said people should be allowed to go to the toilet in an emergency, though he did not clarify who was going to determine what constituted an emergency.