Britain's Got Talent illusionist horrifies as stunt nearly goes wrong

Paramedics scrambled to Matt Johnson's side after the illusionist failed to free his head from chained glass box full of water after nearly two minutes.

For the semi-final of the competition, Johnson was put in a padlocked straightjacket and then locked into handcuffs.

But Johnson became visibly more panicked as he could not get out by what he called the "safe" time of 1 minute, 45 seconds.

Paramedics didn't end up having to intervene as Johnson managed to free himself - and just in the nick of time, it would seem - as he spluttered for air.