When a highly dangerous supervillain’s in town and your overprotective adoptive father orders you to “stay out of it”…
Nightwing: *noiselessly drops down from the ceiling in the middle of a heavily guarded warehouse*
Batman: *bruised, bloodied, bound to a metal contraption and on the verge of losing consciousness* D-Dick, what are you –
Nightwing: *disables the handcuffs* If you wanted a binding agreement, we should have pinky-sweared.