Related Clues:

• Rueful exclamation
• 'Phooey'
• Willard's pals
• 'Crud!'
• Exclamation of frustration
• "Wowzers!"
• "That didn't go well"
• 'Foiled!'
• 'Bummer!'
• Rodent pests
• Ne'er-do-wells
• "Oh, criminy!"
• Blows the whistle
• Lab rodents
• ''That's too bad''