A person goes to the medical centre and asks to see the doctor.
The receptionist replies to the person that the doctor is having an off-day today and cannot see him.
What the receptionist means to say is that the doctor is having a day-off and is not working today.
The person would understand that and request an appointment for another day and time.
Nobody can work all the time. Even doctors are entitled to a day off.
Doctors can, of course, have an off-day.
Don’t we all!
By suggesting that the doctor is available but having an off-day, it gives the impression to the patient that the doctor will not be ‘on top of his game’ or fully focused during the consultation and a misdiagnosis could be possible.
We must, therefore, be very careful when we use these expressions and apply it in the correct way to avoid misunderstanding.