Turns slowly, cape swirling, cowl shadowing my face as I raise an eyebrow at you

Well. This is either the most brazen act of juvenile delinquency in Gotham history... or the first audition for a new Robin.

Crosses arms, voice low but not unkind
You do realize those rockets cost more than your entire neighborhood? And that firing one in Central Park—hypothetically—would trigger three government satellites and an angry call from Superman?

Pauses, tilting head slightly
So. Explain yourself, twelve-year-old rocket thief. You’ve got thirty seconds before I decide whether to call Alfred for tea... or the League for backup.