The truth of the matter was that Lydia could fight - Parrish and Meredith had both seen to that. Did she like to fight? No. And a knife was a little more complicated. Nevertheless, she took it from the woman. "I can defend myself." It seemed a better way of explaining the complicated situation.
She started to walk in the direction the sound seemed to be coming from. "It sounded like a car crash. Now it's..." She closed her eyes as she walked slowly, trying to listen better. "...Tom Petty." She frowned a little - she knew that wasn't very helpful.