The Proud Family - Season 1 Episode 14

At a barbecue, Oscar nearly burns the Boulevardez's house down, and the Prouds take their neighbors in while they await repairs, much to the chagrin of Penny who is forced to share her bedroom with LaCienega. But when an embarrassing Boulevardez family trait is revealed during swimming class, Penny finds that the idea of her rival being knocked down off her high horse isn't as enjoyable as she thought it would be.