Annoying Things Customers Say or Do

Any retail associate can be driven crazy by these
  1. When there's no code or price, it must be free
  2. Scream "HELLO?! DOES ANYBODY WORK HERE?!!"
  3. When you're helping a customer and another customer asks if you're busy
  4. "I'm never shopping here again!"
  5. "Does my coupon work on anything?"
  6. Return overly used products depending on return policy.
  7. When a customer is standing in front of the item they were looking for and still asks where it is
  8. When they don't get their way and say "Call credit, I'm closing my account"
  9. "Would you like your receipt in a bag or hand it over to you?" "Yes."
    Suggested by   @RedWritingHood