Once upon a time there lived a bald farmer. One day, he was sitting in the verandah. A packet of sweets lay nearby. Some flies hovered over them. One of them left the tray and started buzzing around the farmer’s head. The farmer bore it for a while. But the fly kept on irritating him and buzzing around his head.
The farmer finally grew impatient and struck his head with both hands. But the fly was quicker. It would escape each time the farmer tried to strike it. Finally the farmer realised he was only bruising his own head. He gave up trying to hit the fly.
He had learnt his lesson. We sometimes hurt ourselves by getting bothered about little things. It is better to ignore them.