[the Simpsons are on a wagon train in the Old West]
Homer: [singing] Cleaning my gun with the safety off, safety off, safety off, cleaning my gun with the...
[gun goes off, killing a buffalo]
Lisa: Dad, you just killed a poor, defenseless buffalo!
Homer: A poor, *delicious* buffalo. He'll be enough food for the whole wagon train.
[shoots another buffalo]
Lisa: Why did you shoot that one?
Hobo: [the Simpsons meet a hobo in a boxcar] Don't worry! I'm not a stabbin' hobo; I'm a singin' hobo!
[Strums banjo and sings]
Hobo: Nothin' beats the hobo life / Stabbin' folks with my ho-bo-knife!
[Lisa offers Homer apples instead of buffalo meat]
Homer Simpson: Oh boy, buffalo testicles.