Because it feels like when one laughs in Batman's face about justice, one should probably run

RUN EDDIE

worse he might try to make you another robin

lol

he's still giggling to himself, he can't help it

it's even better to imagine it in the christian bale voice

"JUSTICE"

oh there had to be some sort of rumble as he says it

"J U S T I C E"

"Does it flap in the night????"

"is it the bubblegum that sticks in your hair?"

ahahahaa