Once, a dog holding a large piece of bone tightly in his jaws was on his way to a safe place where he could relish it. He had to cross a footbridge over a clear stream. From the footbridge he looked down and saw his reflection. Thinking that it was another dog having just as big a piece of meat in his mouth, the greedy dog jumped into the stream to have that piece as well.
The greedy dog didn’t realise that water creates reflection, and he had seen his own image. But by then, it was too late. He began gasping for air and opened his mouth in the process. With the result, he was deprived of what he already had in his possession. He somehow managed to come out of the stream and save his life.
Moral : A bird in the hand is worth two in the bush.