Jon decided to make it so everyone that tosses a coin into a wishing well and makes a wish would have their wish come true.
He wished it and the stone flashed.
Feeling better about the charitable thing that he had just done, Jon continued to walk home.
But, was it a good idea to make wishing well wishes come true? Do people really put a lot of thought into those kinds of wishes? Jon didn't really think about these things, but he'll soon see the results of his actions.