Related Clues:

• Unsettling last words
• "... otherwise, you'll be sorry!"
• Otherwise - that's a threat
• Otherwise - it's a threat
• Otherwise - may be threatening
• If not, then - sounds like a threat
• Do it . . . . . . - an informal warning
• If not, then - vaguely threatening
• End to a threat, perhaps
• "If you want to avoid trouble"
• The end of a threat to get zero new reels
• Threat punctuator
• ". . . unless you want trouble"
• Open-ended ultimatum
• Words that warn you