I have a friend who is traveling in New Zealand on vacation. She posted a picture on Facebook of herself in front of one of the houses in Hobbiton and said how much she loved it. I responded that if she liked it, then she should have put a ring in it. All I got for a once in a lifetime quip was one perfunctory like.
Back in the mid-90s, I was on a business trip in Norway. The office was on a spit of land that jutted out into a lake surrounded by hills. It was in the late Spring and everything was green and beautiful. One day I went for a post-lunch walk with two coworkers. I saw two swans swimming in the lake and I said that they were the ugliest ducks I had ever seen. Instead of the chuckles I was hoping for, or the groans I was expecting, I received two disbelieving stares and an admonishment that those were swans not ducks.
So, this board is heavily populated with smart asses - who else has quips that went unappreciated in the moment?