Reminds me of an interaction with a hospital inspector scolding me for using an acronym, informing me that JACHO knew better. She stormed away when I asked her why she used the acronym JACHO instead of the organization's full name.
Except it is JCAHO Joint Commission on Accredation of Health Care Organizations so she didn't know it either. A pet peeve is HIPAA, Health Insurance Portabilibity and Accountability Act which is really about permitting Health Care Organizations to transmit your information without your approval to other health care organizations.