I remember our Out of the Abyss game. (spoiler!)
something came out of the darklake which was 30 feet tall and was just trashing the town the PCs were in. One of my players wanted to
Abjure Enemy it (5e Vengeance Paladin). I said: "Are you sure?" Other players vehemently dissuaded him to do it. While they fought, I just listened with glee thinking
do it, do it. In the end, the player decided against doing it and ran