Sir Terry Pratchett has made an emotional plea for the right to take his own life, saying: 'I live in hope I can jump before I am pushed.'  
 
The fantasy novelist gave his views following last week's landmark House of Lords controversial judgment in the case of Debbie Purdy.  
 
'I believe that if the burden gets too great, those who wish should be allowed to be shown the door,' he said. 'In my case, in the fullness of time, I hope it will be in the garden under an English sky. Or, if wet, the library.'  
 
Sir Terry, 61, author of the hugely successful Discworld books, was diagnosed with Alzheimer's diseasein 2007.