This kid is asking for bicep help and you want him to go on a run with a damn sandbag? Thats plain dumb. Im sure itll do wonders for your endurance, probably fat loss as well, but you wont gain size on your arms. Just think through that, running, no arm work, carrying a sandbag, very little arm work, how would that equate to hypertrophy? It sounds like a good workout and all, but not for arms.
I heartily accept the motto, "That government is best which governs least"; and I should like to see it acted up to more rapidly and systematically.