The story of a Pigeon!

 Once upon a time, Ramu was returning from the market. He was tired.

So, he leaned against a large tree and fell asleep.

A pigeon was sitting on a high branch of that tree.

After a while, a woodpecker came and sat on a dry branch below it.

When the woodpecker pecked hard to eat an insect inside the dry branch, a dry stick broke off and fell on Ramu's head.

At that moment, the woodpecker flew away. Ramu woke up, looked angrily, and threw the stick at the pigeon he saw, knocking it down.

When the pigeon explained that the woodpecker had dropped the stick, Ramu said, "Still, you made a mistake here."

Question: What was the pigeon's mistake?

Answer: The pigeon should have known in advance that the woodpecker's presence would cause harm and flown away!