In The Dark Knight, after Batman left MCU to save Rachel, Joker makes a phone call in order to detonate a bomb he put in the abdomen of a culprit. In that blast, everybody dies who was standing there when Joker threatened to kill the officer with a knife.
Joker didn't have any kevlar or anything to protect from the blast, then how did he survive that blast? Was it a goof or implausible?