A fan of TV illusionist Derren Brown has claimed that he was left immobilised for 12 hours after watching one of his recent shows.Brown attempted to keep viewers stuck to their seats by playing a special video in his Channel 4 programme How To Control The Nation earlier this month. At the end of the stunt, he played another tape which was designed to free anybody who was unable to move.Johnathan Whitfeld, 26, has now told the Daily Star Sunday that only the first video worked on him, leaving him motionless all night. His partner Katie Dunn, 23, was out with friends while the 9pm programme was broadcast and reportedly went to bed assuming that Whitfield was joking when she returned home and spotted him sitting transfixed by the screen.Revealing what happened the next morning, Dunn explained: "He was just saying, 'I'm stuck, I'm stuck, I need the loo'. I didn't have a clue what to do so I texted a friend who I knew had watched it."She said Derren played a video at the end to free people. Luckily, Johnathan had also recorded the show so I found it, played it and he managed to get to his feet."Whitfield added: "It was dreadful. I can see the funny side of it now but at the time I wanted to sue him."I needed the toilet and was in agony for hours but I just couldn't get out of the chair. I've never been hypnotised before but I imagine that's exactly what it felt like."