HEAR THE ONE ABOUT THE FNG on recon patrol who pitched one after an old slope who exhibited strange behavior? The suspect had scurried into a cave; the grenade bounced after him felicitously. Seven seconds of agonizing silence. Then a minute. The Marine approached the cave mouth with caution. Whiskered and blinking like Lazarus, the stooped old man emerged with a cat in one hand and the odd metal ball in the other. He handed the Marine the grenade and went back to his village with the cat. The Marine remembered small missile training at boot camp, and the detail on removing the protective tape.