Two entrepreneurs, Jack and John, decided to start a bungee-jumping business south of the border.  They went to Casa del Sol, Mexico, built a huge platform, and opened for business.  By noon the first day, they both noticed that while everyone was watching, no one was buying tickets.

Jack told John to go up and jump, so everyone could see how much fun it was, and then they would buy tickets and try it.

John jumped, almost reached the ground, and sprang back up.  Jack saw that his shirt was torn and his hair was mussed.  John came down again and sprang back up.  This time he had several bruises and his clothes were ripped to shreds.  The third time down and back up, and he had several open wounds, a broken arm, and was bruised over most of his body.

Jack quickly raised John to the platform and asked him what in the world was going on.

John replied, "I'm not sure.  Do you know what 'pinata' means?"