Related Clues:

• Two-timing rodents?
• Laboratory maze navigators
• Charlie Brown's "Darn it!"
• Some rodents
• Proverbial sinking ship deserters
• Hamelin headache
• Brown expletive
• Rodents
• Treacherous rodents
• What a nuisance that they shine back
• Might they gnaw their way back for the main part?
• How pestiferous to have turned so heavenly
• What got piped into the water
• Beastly little light from back there
• Such a nuisance that they shine up like this