A little boy was sitting outside a store eating one Milky Way Frozen  candy bars after another, when an older gentleman walked up and said: 

"You shouldn't be eating so much candy, it'll rot your teeth, it's just bad for you to eat so much candy."

The little boy looked up and said:

"Well my grandfather lived to be 95 years old." 

The older man asked: "Oh? by eating snickers candy bars?" 

The little boy said: "No... by minding his own business."  :-)