Would you kindly?

 The main character of the origianl Bioshock is linguistically programmed to do whatever the villain asks him to do so long as he prefaces it with the phrase, "Would you kindly?"  (E.g., Would you kindly go kill Andrew Ryan, the Ayn Randesque creator of Rapture?) It has now become common practice in this house that if one of us wants the other to do something we preface the request with ths same phrase.   So far, it seems to work, too.