In the episode where D.J. throws Kimmy a surprise birthday party, Stephanie accidentally tells tells Kimmy that D.J. is throwing her a surprise party. Kimmy asks D.J. if she can bring a couple of friends from karate class. D.J. says yes. Later on when Kimmy arrives, there are two mistakes.

The first one is: Kimmy acts so surprised to fool everyone else that she had no idea about any party, but then right afterwards, she says "D.J., these are the friends you said I could invite." But then everyone should have realized something was up, because why would Kimmy know to invite them?

The second one is: When the brown haired girl says she'll call the Duke, she turns around, and her hair flung around so it would sit in front of her shoulder. But in the next scene, it is behind her shoulder.