[Whilst Lynn is operating on John's brain]
Lynn: John, how are you doing?
John: Never better.
  
  
  
  
  
   
  
  
Lynn: John, how are you doing?
John: Never better.
 [Whilst Lynn is operating on John's brain]  
 Lynn:  John, how are you doing? 
 John:  Never better. 
http://www.moviequotedb.com/movies/saw-iii/quote_37855.html