Generous Johnny

Little Johnny asked his dad for a dollar to give to a little old lady at the park. His father impressed by his son’s kindness, gave him the dollar.
The next day, Little Johnny asked his dad for another dollar, again for the little old lady at the park. Proud of his son’s generosity, the father gave him another dollar and patted him on the back.
The following day, before heading out to the park, Little Johnny asked for yet another dollar.  
“There you are my son,” said the father. “But, tell me, isn’t the little lady able to work any more?”

“Oh yes, she is, daddy,”said Little Johnny with a wide smile, “She sells candy at the park.”