Possible Clues:

• 'I wouldn't do that'
• 'No way'
• "I wouldn't do that"
• 'I wouldn't do that if I were you'
• ''You shouldn't do that''
• "I wouldn't do that if I were you"
• Lead balloon, so to speak
• ''I wouldn't do that''
• "Find another way"
• Sticking a fork in the toaster, e.g.