Related Clues:

• 'A house __ a home'
• Respectful refusal
• "This __ a test"
• ''Over my dead body!''
• 'Ain't gonna happen!'
• 'Don't you believe it!'
• Genteel rejection
• 'Don't even think about it!'
• ''This __ a drill''
• "Wrong!"
• Words in arguments between kids, perhaps
• "This ___ a drill"
• Courteous rejection to a woman
• Frequent Sgt. Friday rejoinder
• 'Failure ___ an option'