Related Clues:

• '...unless you want trouble'
• '... or ___!' (threat)
• 'Anyone ___?'
• ''So what __ is new?''
• Unspecified, but invariably unpleasant, alternative
• To avoid the alternative
• '___ what?' (response to a threat)
• ''If all __ fails . . .''
• ''Otherwise . . .''
• 'You're something ___!'
• "Anything __?"
• Word suggesting options
• "Who __?"
• Word in a conditional statement, perhaps
• Menacing words