Blood Feud/References

Trivia

 * The head can also be seen in later episodes, in the corner of the Simpsons basement with the rest of the clutter.
 * The song that Otto hums while cleaning his hands is Iron Man by Black Sabbath.
 * Homer tells Bart Aesop's Androcles and the Lion, although he gets the moral of the story horribly inaccurate and mistakingly thinks it comes from the Bible, as well as thinking the protagonist's name was Hercules.
 * The episode was referenced in the question round of Bart vs. the World with two questions. Question #1: What was the rare blood type that only Mr. Burns and Bart are known to have? A: B -. B: OO-. {correct answer} C: ABC. Question #2: How did Bart save Mr. Burns' life? A: He saved him from an exposed cooling rod. B: He talked Homer out of murdering him. C: He donated blood to him. {correct answer}

Goofs

 * Dr. Hibbert is seen colored yellow instead of his usual black skin.