Lucky or not quite as unlucky for Jon the spirit that was trapped in his stone was not really evil, it just liked to spread mischief. So, the spirit would try to encourage Jon to make more wishes that it would twist a little to amuse it.
So when Jon picked up the Jon the next morning when he started to get ready for school the spirit of the stone was brimming over with enticement when it heard Jon say, "I wish ..."
