The Ying-Tao bomb makes no sense
How does the woman know HOW MANY TEETH Jackie Chan's character has? Many people have some of their teeth removed, others have wisdom teeth and such, so.. does the bomb somehow count the teeth and report it to her earpiece or something?
Does the bomb always blow only that particular amount of teeth, but no more, and .. no less?
Does the bomb magnetically grab someone else's teeth if Lee doesn't have enough?
WHY MENTION THE NUMBER OF TEETH?!
It makes NO sense!