This is the first episode in which Pip gives in to anger. Previously he is inhumanly forgiving to even the worst abuse.
The three calligraphy scrolls hanging at the back of the training gym in China contain typical Chinese swear phrases. They are "fuck you mom"; "bastard", and "her mom's".
At the back of the classroom is a picture from "American History," one of Trey Parker's first animated films he made in college.
The kid known as Swanson in this episode, would eventually become Butters Stotch.
Visitor Sighting: Right when Chef's talking to Pip, after Kyle's dinner, a logo of a Tennis player has an alien head at the Denver school.