Hiya!
And if they are Christian, you just offended them. But...that's ok, is it?
That was the point that
@dnd4vr was trying to make; it is an exercise in futility to 'walk on eggshells because of the off chance you might say something that offends someone'...because it can go all different sorts of ways. "Merry Christmas" vs "Happy Holidays"....or "Happy Halloween" vs "Happy Saturnalia"...or...or...or.
I think that was his point. I'm 100% behind his reasoning, for the record. The only time I find myself "walking on eggshells" is when I'm not protected by the Constitutional Amendments and/or Charter of Rights and Freedoms (I'm a dual citizen of American/Canadian; born in US, also attained Canadian Citizenship). Which basically means anytime I'm "online at certain sites" (like Youtube, or if I was on twitter...which I'm not, never have been, and never plan to be, etc), so...yeah.
^_^
Paul L. Ming