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• Now hear this! The father/son sack race will begin in 5 minutes on the north lawn.
  Participation is MANDATORY, repeat MANDATORY!" -- The Simpso...
• Smithers: Mr. Burns, are you ready? Burns: Yes. Smithe
  Are you set? Burns: Yes. Smithers: [whispers] Go, Mr....
• Now it's time to say goodbye. Please get off my property until next year.
  I suggest you don't dawdle, the hounds will be released in ten minutes....
• Homer: Okay, now look. My boss is going to be at this picnic, so I want you to show your father some love and/or respect.
  Lisa: Tough choice. Bart: I'm picking respect. -- "There's No Disgrace Like Home...
• Everything that is not mandatory is forbidden.
• Happiness Is Mandatory....Are you Happy ?
• IBM: Ill'manners Being Mandatory
• Mandatory tagline not required for this message.
• That which is not forbidden is mandatory.