She doesn't like being called so arrogantly, but Ami only smiles pleasantly - always a warning, to those who know her well.

"Doctor Mizuno," she says clearly; she invites no intimacy, and maintains the dignity of that position, a polite if pointed reminder that she is not some errand girl or some 'you over there'.

To further underscore the point, she refrains from standing or asking Aki to go on, though she still listens. She's not beneath anyone.