When you write, "We're Alive" on some of your holiday cookies, you're actually helping promote safety not just making everyone at the party feel unsettled, so that's one more good deed before the year ends.
When Ma was 5 her brother's train set sparked and set their very dry Christmas tree on fire. She was petrified of fire after that, but loved a natural tree, so watered it incessantly. One of her favorite gifts was a bell ornament that was actually a smoke detector.
So glad I live somewhere with type-G plugs and can plug in electric heaters with reckless* abandon.
*Paying attention to not exceed the smaller limit when fully wound.