[Lisa goes door to door trying to educate people about the environment. She goes to the first house.] Lisa : [rings doorbell] Hello. Sorry to bother you on a Sunday, but I'm sure you're as worried about the pollution in Lake Springfield as I am-- [The person has shut the door on Lisa. She goes to the next house] Lisa : [Rings doorbell] Lake Springfield has more levels of mercury than either-- [The person has shut the door on Lisa. She goes to the next house. An old lady answers] Old lady : Why, it's the little girl who saved my cat. Lisa : Lake Springfield-- [The old lady shuts the door on Lisa. Lisa sighs and gives up.]

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