The Berenstain Bears practice their manners Sometimes you get up on the wrong side of the bed. But the cubs learn that is no excuse to be rude Good thing Mama Bear is here to set the Bear family straight. And with a little laughter, everyone can find a way to all get along. The Berenstain Bears: That's So Rude is the latest 8x8 storybook addition to the classic New York Times bestselling series.