Related Clues:

• Hamelin's problem
• "Dang!"
• Willard's cohorts
• "Phooey"
• "Willard" creatures
• "Dagnab it!"
• Lab animals
• Two-timers
• Cry from Charlie Brown
• Pied Piper's followers
• Hamelin evictees
• Lab-maze runners
• Relatives of mice
• Flops
• Charlie Brown's ''Darn!''