Trying to keep 5 men quiet was almost impossible. The Joker gritted his teeth, having a feeling they would give him away at this rate. It was getting down to the time he was contemplating killing them off and making a run at it, but the chances of that being successful was slim.
But finally they had enough loaded and almost done hot-wiring the steering wheel to make their getaway, when the Joker noticed something was off. "Batsy, Batsy, Batsy." He grumbled in a low voice thick with amusement.