The story goes that a man was upset that his neighbor kids would always play 
on his lawn and damage it. So he decided to pay each child to play on his 
lawn. The surprised kids gladly accepted. After a few days the man told them 
that he could only afford to pay them half of the initial rate. The kids 
accepted this reduced rate but were less then enthusiastic. After a few more 
days the man cut his pay to almost nothing and the children were so upset 
that they left, vowing never to play on his lawn again unless he increased 
their pay. Problem solved.