Reply To: What do you call your rabbi?

When referring to the Rabbi of our synagogue, I say Rabbi….last name
When calling the house or synagogue office, I announce myself: This is Atty CTL, may I speak to the rabbi please.
When he is in the privacy of the CTL hot tub or sauna or swimming pool, I call him by his first name.
He’s more than 30 years younger than me.