A customer receives incorrect change and points this out politely. You realize they are correct. How do you handle this?

Correcting errors immediately and professionally, with a brief acknowledgment and apology, is the correct response. The customer is not being difficult — they are pointing out a legitimate error. A brief, professional correction restores trust. Making a scene, denying the error, or engaging in lengthy defensive behavior are all unprofessional. Counting the entire drawer in public while other customers wait is unnecessary — simply correct the change and note the discrepancy in your records.