I believe this may be an old joke - but my ex told me it happened to him. Back in the 60s he had a Jewish employer who never worked on Jewish holy days.
Phone rang and the caller asked to speak to the boss. Husband said “Dan’s not here - this is Yom Kippur. Caller said ‘Well Mr. Kippur can you tell me if...........”
LOL! That sounds like an old joke - but a good one. Merry Christmas, peace and joy to you and yours!