When was the bear tied up with a chain? Why?

He was tied up with a chain whenever he did some mischief. He was also put in chain at nights and every Sunday when his mistress went out to spend the afternoon with her married sister. This was done because it was not good for him to wander about in the forest which had all those things which could tempt so it was better to make it stay tied with a chain to keep it safe.

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