LOL, I say “Merry Christmas” to everyone who says Happy Holidays to me whether they like it or not.
I was in the Post Office the other day buying stamps. Told them I wanted Christmas stamps, not holiday stamps. Should have seen the look on her face, LOLOL.
The post office was probably wondering why you don’t understand that Christmas is a Holy Day.
I do the same thing! Every once in a while the person will come back with a Merry Christmas, almost like they needed my permission to say it.