Continuity mistake: When Bobby and Hank are in the pet store looking around, there are some red & white bags of dog food. Hank then asks the store clerk how much it costs to put a photo of Ladybird on a mug, and the color of the bags has changed. One of the bags is orange and white, whilst another is yellow and white.
Continuity mistake: During the scene in which Bobby shares his Hungryman dinner with the raccoon,the food in the left of the tray is a white color. As the shot shows the raccoon eating, it's bright yellow.
Answer: If you are talking about the "Thou shalt not do this, thou shalt not do that" song, I'm not sure if a song like that actually exists. Green Day, the guest voices on the episode, might have just been improvising to keep their appearance from being too obvious.