Rub salt into a corpse

"He ruined my life," the Joker croaks out and Jason doesn't care. He wants answers not to hear the nonsense the Joker spews out like poison. "No matter how many little Robins I kill, I'll always be behind. When I-" the Joker grimaced as Jason tightened his grip even further because he's isn't the replacement's biggest fan but that didn't mean he was okay with the Joker flippantly mentioning murdering him, "figured out who you were I'd hoped she'd f*ck up being dead too." The Joker paused, a look sadness washed over his ugly and worn face. And Jason - (Or the Joker has always had a way, an art when it came to hurting Jason Todd.)