Groark and Burna learn that being irresponsible can be unfair and hurtful to everyone, including themselves. When Burna neglects an important responsibility by dumping it on Muggsy, and Groark makes a mistake and let's Muggsy take the blame, the result is a tangle of hard feelings that nearly brings their friendship to a painful end.
Burna discovers that name-calling, teasing, and put-downs are not merely good natured fun. When her friends ostracize her for treating them disrespectfully and for bullying a new kid on the playground, Burna learns that the way to have good friendships is to treat people the way you would like them to treat you - with respect.