He constructed two anti-Superman, Kryptonite-powered weapons (encased in lead to render them not visible), by converting Luthor's stolen Kryptonite rock into (1) a Kryptonite-tipped spearhead with a thick shaft, and (2) three gas grenades (created from left-over dust from the laser-cut spear).Now we will put down our weapons.We have passed through the night of the fires, and those who were our masters are now our servants! And we, who are not human, can afford to be humane...it might get somebody killed.Why don't you let me meet with the son-of-a-bitch?Chief: No, none of that.You'd end up with a real blood-bath.Mayor: I agree with the Chief.We'll do it this way.As Callahan departs, he is advised by the Mayor to avoid stirring up violence (as he did in the past in an attempted rape case), but Callahan is contemptuous of authority that limits his effectiveness:Mayor: I don't want any more trouble like you had last year in the Fillmore District.In fact, one of the film's major themes is disguise and masquerade - e.g., the drag costumes of the two male musicians, Joe's disguise as a Cary Grant-like impotent millionaire, and Jerry's happiness with a real wealthy, yacht-owning retiree.