Jimmy: Hey, what gives?
Jimmy's Dad: You said you wanted to live in a world without zinc, Jimmy. Well, now your car has no battery.
Jimmy: But I promised Betty I'd pick her up by six. I'd better give her a call.
He tries to dial Betty's number, but nothing happens.
Jimmy's Dad: [chuckles] Sorry, Jimmy. Without zinc for the rotary mechanism, there are no telephones.
Jimmy: [distraught] Dear God, what have I done?
He takes a gun out of the drawer, puts it against his head and pulls the trigger, but it doesn't fire.
Jimmy's Dad: Think again, Jimmy. You see, the firing pin in your gun was made of - yep - zinc!
Jimmy: Come back, zinc! Come back!
Dissolve to Jimmy in his bed, talking in his sleep and waving his arms.
Jimmy: Come back... zinc... come back... zinc... [wakes up] Zinc? Zi.. what? [sighs in relief] It was all a dream. Thank goodness I still live in a world of telephones, car batteries, handguns [bang!] and many things made of zinc.