A pig went into a bar and asked the bartender for a glass of
 water. The bartender gave the pig the water and when the pig was
 done he asked the bartender if he could use the restroom.  The
 bartender said, "Sure. It's down the hall and to your right."
 
 A little while later another pig went into the bar and asked the
 bartender for two glasses of water.  The bartender gave the pig
 the water and when the pig was done he asked the bartender if he
 could use the restroom.  The bartender said, "Sure.  It's down
 the hall and to your right."
 
 Soon after, another pig went into the bar and asked the bartender
 for three glasses of water.  The bartender gave the pig the water
 and when the pig was done he asked the bartender if he could use
 the restroom. The bartender said, "Sure.  It's down the hall and
 to your right."
 
 Then another pig went into the bar and asked the bartender for
 four glasses of water.  The bartender gave the pig the water and
 when the pig was done he asked the bartender if he could use the
 restroom.  The bartender said, "Sure.  It's down the hall and to
 your right."
 
 After a little while another pig went into the bar and asked the
 bartender for five glasses of water.  The bartender gave the pig
 the water and the pig drank all five glasses and was about to
 leave when the bartender stopped him and said, "Wait a minute. 
 All these other pigs have come in here and drank between one and
 four glasses of water and they all needed to use the restroom. 
 But you drank five whole glasses of water.  Why don't you need to
 use the restroom too?"
 
 And the pig replied, "Don't you know the story?  I'm the little
 pig that goes wee-wee-wee all the way home."