The right bad attitude can defeat certain threats.
“I will make you sorry you were ever born.”
“For your information, I’m already sorry that I was ever born.”
Cf. “I wish my mother had aborted me.”
Popped up in my tumblr feed just now, sourced back to a tumblr called harlieyquinn. A bit of googling around indicates that this is a scene from some television thingy called That 70s Show.