You didn't understand how watching Nightwing could help your training, but Slade (your father) had sent you to do it and questioning him had never been an option.

You had been hiding for a while, watching Nighwing deal with a gang, but in a blink he was gone. Then you felt a hand on your shoulder, you turned around fearing the worst. "Are you a fan, kid? You've been following me around for a week, you're pretty skilled, huh?" Nighwing asks as if what you were doing wasn't odd.