Related Clues:

• Lab animals
• Two-timers
• Cry from Charlie Brown
• Pied Piper's followers
• Hamelin evictees
• Lab-maze runners
• Relatives of mice
• Charlie Brown's ''Darn!''
• Charlie Brown cry
• 'The Secret of NIMH' figures
• "Peanuts" expletive
• ''Darn it all!''
• "Confound it!"
• 'Aw, heck!'
• Stool pigeons