Related Clues:

• Lab dwellers
• Divulges
• Sewer rodents
• Charlie Brown's "Darn!"
• Unintentional poker table signals
• Candidates for witness protection programs
• Traitors
• Unwanted tenants
• Urban vermin
• Blows the whistle (on)
• Recounts
• Narrates, as a story
• "Dagnabbit!"
• "Doggone!"
• ''Peanuts'' expletive