Related Clues:

• "When pigs fly!"
• "Good grief!"
• 'You can't be serious!'
• "Not a chance!"
• "Forget about it!"
• "Get out of town!"
• "In your dreams!"
• Never!
• "Fat chance!"
• "Impossible!" and the theme of this puzzle
• "You gotta be kidding!"
• "I don't think so!"
• Adamant denial
• Refusal to Jose?
• 'Not a chance'