Jacob Marley:  When the clock strikes one ... the Ghost of Christmas Past
Ebenezer Scrooge: I prefer not to think about the past
Jacob Marley: When the clock strikes _ two _ ... the Ghost of Christmas Present
Ebenezer Scrooge: At the present I 'd like to go to bed
Jacob Marley: When the clock strikes three ... the Ghost of Christmas Yet to Be ! Three ghosts who yet may stop you ending up like me ...