I'm white. I have blue eyes. And when I was young, my hair was red. I was working retail, and this old lady said "Merry Christmas."
Me: "Happy Holidays!"
Her: "It's Merry Christmas. I know your boss doesn't like it, but you should say it to me. So Merry Christmas."
Me: "Are you Christian?"
Her: "Yes."
Me: "Well, I'm not. So Happy Holidays."
She got so stunned, like I'd slapped her. I was quite ready to get called in for being some kind of way with a customer but I guess she was too afraid of dealing with a heathen. Still, if you've ever worked retail, you'd know why this felt like a victory.