The Brite Star Bears Learn About Worry includes two Brite Star Bears stories about worrying.
In Thinking Stump of Worry Stump, Honee is worrying. It was not until his owl friend comes by that Honee realizes the worry was all for nothing.
In Hat in the Wind, Bo gets the gang worked up over an old hat and says he would never trust a person who wore a hat like that. In the end he has to "eat his words."