Personally, when I first saw the drabble title, my first thoughts went to a certain Star Trek: Deep Space Nine episode. It's that episode where we see Quark, Rom, and Nog showing up in Roswell - 1947. It is what it is. I possibly watch way too much television.

Your Little Green Men, not exactly reflecting the Star Trek: DS9 episode of the same title, delivers a well-imaged St. Patrick's Day story. Aliens and Leprechauns, supposedly the same thing, are perfectly addressed.