The Bruce Swap

Bruce is a bear who struggles with fun.
When Bruce says no to fun one too many times, Nibbs, Thistle, and Rupert secretly wish Bruce was more fun. And the geese secretly wish for sandwiches. The next morning, all their wishes come true. Bruce is cheerful. Bruce is adventurous. Bruce has pizzazz . . . and a basket of sandwiches.
Except Bruce is not exactly Bruce. He's Kevin, Bruce's fun cousin. Nobody knows that Bruce has gone fishing. Nobody knows that Kevin is coming. Nobody even knows who Kevin is. But, everyone quickly learns one thing: Kevin LOVES fun.
Is it possible that too much fun is no fun at all?