Trivia: There are Chinese characters on the sign for the Chinese drive-through restaurant where the woman on the speaker always says, "And then?" The characters, read "hai you ne." In Mandarin this can be translated as "Is there anything else?" Or, as she says, "And then?"
When Chester is taking Jacko's pipe, Nelson gets up out of his seat. When they show Jacko really really mad, you can look in the background and Nelson is sitting down. When they show him again he is out of his seat.