Notable appearance: Batman/Superman #3, Batman #609
One of the security systems that Batman has actually built into his own costume is a cloud of tear gas that sprays anybody trying to remove his mask involuntarily. In the third issue of Jeph Loeb’s Batman/Superman title, this gas gets used on a brainwashed Solomon Grundy as he attempts to reveal Batman’s secret identity to the world.
Soon enough, the mountainous walking corpse was on the ground courtesy of the sadistic mind of the Caped Crusader. This just further proves that from the tips of his pointy ears to the soles of his boots, there isn’t an inch on this man that isn’t armed.