Automatically exclude hunks from the commit

  I have some files I update frequently where I have some normally 
commented out debug code purposely uncommented during development.  
Git's hunk-level staging saves the day.  I can stage everything but the 
debug code without issue.

This got me to thinking.  Is there a better way?  Is there a facility in 
Git where I could mark a hunk as 'permanently frozen unstaged'?  
Anything marked as such would never be staged for commit.  I could rest 
assured I would never accidentally commit my debug code, be it extra 
printfs or a development server or a password or so on.

Thanks for the help.

Josh