Related Clues:

• "Gosh darn it!"
• Lab dwellers
• Scandalized response
• Sewer rodents
• "Gracious!"
• 'Lions and tigers and bears' follower
• "Good heavens!"
• Charlie Brown's "Darn!"
• Candidates for witness protection programs
• Traitors
• Unwanted tenants
• Urban vermin
• "Dagnabbit!"
• "Doggone!"
• ''Peanuts'' expletive