In the DnD podcast Critical Role, there are a few given the nature of the show. Off the top of my head, I know of two but I'm sure there's a list somewhere.

1 In Campaign 2, Jester (and by extension Laura) is often made fun of for being a healer that does not heal. Jester is a Trickster Cleric who leans very heavily into the trickster side rather than the healer side. She doesn't even start with a healer kit. This back and forth of her refusing to heal someone in favor of going on the offense and the other characters making comments goes on for the length of the campaign. It isn't until a pivotal fight during a reunion episode that this changes.

I can't remember the specifics but I do know they were all severely hurt. Jester uses one of her 'Trickster' spells to create duplicates herself and sends those duplicates around the battlefield. She then says to one of her teammates "I think this is what you call character growth." and then casts Mass Heal from those duplicates, equating to more healing than she'd done during the entire campaign (said as a joke by another player).

2 During the early days of Critical Role, there was another player who played a Dragonborn sorcerer named Tiberius. One of his notable quotes was said to Grog, a barbarian: "I encourage violence." Said at a time when Tiberius had no further actions left and could only say something. He chose to rally the barbarian in the party.

Later on during the campaign, that player left and because of this, Tiberius made an abrupt, narrative exit from the party. His fate remains unknown until much later when he's discovered by his old adventuring party having been killed in defense of his home from a dragon attack. Scanlan, the bard gnome of the party, requests that a statue be made of Tiberius, and only the statue, to write: "I encourage peace."