[MattJargin]

I have to go for an MRI scan on Saturday, as my back is still in a really bad state.

Trouble is I have metal staples in my breastbone, from surgery as a kid. I was always of the understanding that if you have any metal in you, then you can't got in an MRI machine - as it'll basically turn into a low-budget remake of Aliens.

Now suddenly my doctors are turning round and saying that I can have an MRI, even taking into account the staples in my chest.

Obviously at the point they fire up the machine with me in it, it will be a little bit too late to go back - so I'm a bit worried about all this.....