A book of short stories

Which hand has the key?

  Don't go into the bathroom. If you must, grab a friend. It won't be a problem for the ladies though. They always go together as I never understood why.
  There is a man who looks through a small hole in the wall waiting for the perfect time. When his victim is most vulnerable. He comes out of the janitor closet and walks in, locking the door behind him. He holds up both his fists.
  "Which hand has the key?" He asks.
  Guess correctly and you are free to go, guess wrong and you die a slow a painful death.
  A women, unfamiliar about the bathroom walks into this bathroom wearing a white sundress. She walks with grace. Opens the last stall door when she hears the door open and the sound of footsteps eco in the room. Then the sound of keys jingling can be heard with the sound of a locking lock.
  "Which hand has the key?" The man says.
  Confused the women stays in the stall and pulls out her phone.
  "What hand has the key?" He repeats with a tint of anger hiding in his voice.
  The women texts a friend that lives three blocks from the restaurant. As she is doing this the man walks closer to her stall. He tries to open the stall door.
  "Which hand has the key? You have five seconds."
  The women backs up as far as she could when the stall door bursts open. With a small kitchen knife in his hand he walks to her. She pleads for mercy but he does not give it to her.
  The women found dead in the stall  with her dress now red with her own blood.