HUMOR: Fill it up!

Not mine.  Found online.

One Saturday the Pastor's 5 year old daughter complained of a stomach ache to her mother. Her mother replied, "That's because you have an empty stomach. You need to feed it with something."
The next day her father sat down after a long sermon and complained of a headache. His daughter replied, "That's because you have nothing in your head you need to feed it with something."