Once upon a time, a merchant was walking along the road when he came upon a ferocious-looking tiger trapped in an iron cage. As he passed by, the tiger called out to him, asking to be let out of the cage for a while so he could drink some water.
The man pitied the big cat, but was concerned for his own safety. Tigers, after all, eat humans. But the tiger begged so much that the man finally agreed to let him out for a little while.