The Berenstain Bears (2003)

Forget Their Manners (1x29)

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Mama Bear decides to take her ill-mannered family in hand and offers them lessons to become polite, but she realizes that she received better luck from children than Papa. Unsuccessful in her method, she devises a Politeness Plan - a chart listing a chore as a penalty for each act of rudeness. The cubs foil the plan by being super polite and actually enjoy it.