"Not everybody can fire the AK series of weapons, not everybody can throw grenades like that, " he said.

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But instead of spewing lethal fragments like the grenades and explosive charges that the military uses to breach walls, the water bottles just shatter on impact and release a spray of water.

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Villarreal and Lutz have rescued the Karma from what I would like to call the tragic grenades.

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Second, investing is a lot like horse shoes or hand grenades.

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