Getting locked in the bank vault and being concerned about how long the air in the vault would be breathable.
The drug kingpin on the phone with Carl instructs him to transfer the money five mnutes before closing time, just as Joe tells Dawn to make the bomb-threat call to the bank five minutes before it closes.
Ticking watch mistaken for timer-activated bomb
Initially mistaking the bomb's countdown-ticking sound for a wristwatch's ticking.
Searching for/chasing the villain around on the train cars, just as the mercs try to hunt down Joe Collins at the railyard.