Information about the customer should NOT be shared with an employer unless:

The sharing of customer information is predominantly governed by principles of confidentiality and privacy. When considering the appropriate circumstances under which customer information can be shared with an employer, obtaining permission from the customer stands out as the correct choice. This ensures that the customer's rights are respected and that they have control over their personal information.

Consent is a cornerstone of privacy rights; an individual must have the choice to grant or withhold their information. Sharing information without consent can breach trust and legal requirements regarding privacy. This principle applies across various regulations, including data protection laws, which emphasize the need for explicit permission before sharing personal information.

In comparison, while safety, legal requirements, or an employer's request might suggest scenarios where sharing could be considered, these situations would typically still hinge on consent or legal protections rather than being sufficient grounds for overriding a customer's privacy autonomy. Thus, obtaining the customer's permission is the key requirement to ensure ethical and legal sharing of information.