I've long maintained that the distinction between "professionals" and "amateurs" is often very slight, often amounting to little more than that the former are paid and the latter are not. This is in no small measure because professional arrogance has been known to become intolerable if left unchecked.
So it happened that a patient was making his first visit to the doctor. "And whom," began the physician with utmost dignity, "did you consult about your illness before you came to me?"
"Only the pharmacist down at the corner," replied the patient.