I currently GM a table-top Changeling: The Dreaming/Werewolf: the Apocalypse crossover game. In a recent session, the characters faced off against a fomor (basically, a human being possessed by a malevolent spirit) with a power called the Roar of the Wyrm -- essentially, the fomor makes a gutteral scream, and everyone who hears it runs in fear.
All of the characters succumbed quite spectacularly to the Roar that session, running away as far and as fast as they could.
After the game was over, one of the players asked me how he'd go about increasing his character's Willpower rating. "Spend XP equal to your current Willpower rating, and do something IC to make yourself more self-confident," I responded.
Without missing a beat, another player said, "Well, that's not *this* session."