Lets just be sure that all the 'convicts' remember who it was that put them there in the first place . . . and when the time comes, properly thank them by 'shanking' them when the dirty bastards come to stay.
(If the Auzzies don't know the slang 'shanking' its an American prison expression for a stabbing, named so because pieces of metal, or shanks of metal, are most commonly used. Hey, what's the Auzzie prison equivalent for 'a shanking'?)
I guess that the U.S. military know the terminolgy, having named the operation to reclaim Ramadi "operation Shank" al jazeera