This thread is really simple. Just make up an outrageous reason why the user who posted before you has been put in jail.
Eg: philimaster is in jail because he enjoys poking goldfish with carrots.
Please keep it light!
Hold it right there, you! I'm puttin' you all behind bars for failing to come up with a proper context, and instead just ending every bleedin' post by having some policeman come in and-- Wait a minute...