I warned my wife I start playing Christmas music on my guitar and singing along on Nov. 1 as usual. I hide all my guns before I notify her of that event.
Usually it's the ladies who do that.
I had a lady friend of mine (we never dated, much to my consternation—but that's another long story not fit for a public forum) who was a Christmas nut. She'd play Christmas music as early and as late as she could get away with it. A few years back, I confided in her that every October, from the privacy of my own laptop, I would search out the first radio station in the country to flip over to Christmas music and listen in as a guilty pleasure.
She gave me some good-natured ribbing about that for a while.