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Listening to my Dad’s stories of Army life in Vietnam is a richer experience with props. Here he points out the fruit cans and grenades used together as boobie trap; and describes how he and his unit used the C-4 plastic explosive from a Claymore as cooking fuel. Never at night; you can’t put out the light if you needed to. The explosive would explode if you tried to extinguish the fire. From the Army Museum.