And how is that "off the record" supposed to work anyway? Once you said the phrase, the chat automagically stops sending the texts, or they autodestroy or somet

And how is that "off the record" supposed to work anyway? Once you said the phrase, the chat automagically stops sending the texts, or they autodestroy or something? And people get their memories erased like in MIB? Because this looks more like a detective movie scene and less like all day reality.