Related Clues:

• Do wrong
• Using metallic dishes in a microwave, e.g.
• Do the wrong thing
• Bad bad leader?
• Insult or injury
• Cell phone ring in a theater, e.g.
• Pass by, as time
• It's frowned upon
• Smacking one's lips while eating, e.g.
• Memory slippage
• Forbidden action
• Elbows on the table, e.g.
• Expire, as a membership
• Roving eyes on an exam, e.g.
• Mental slip