LOL, you will be surprised on how many people in America thinks it is a Holiday. I told this to a group of co-workers and there happened to been a guy of color there. Of course he called me a racist...so I asked him if he knew how to use a computer. I told him to google it himself and he did. He was hesitant on apologizing to me, but I just called him a moron anyway.
Good for you! I do it every year to neighbors and co-workers and anyone else who thinks it is a “holiday”.