A sargeant, his private, an elderly grandmother and her granddaughter were riding train facing each other. They went through a tunnel and everything went dark for a few moments. There was heard a kiss, then a loud slap.

The grandma thought, "The private kissed my granddaughter and she slapped him."

The girl thought, "The private kissed me and his sergeant slapped him."

The sergeant thought, "The private kissed the girl and she slapped me my mistake."

The private thought, "I kissed a beautiful girl and slapped my sergeant, and got away with it."