Robbers foiled by bullet-proof glass

Two would-be robbers brought a hammer and gun to break into a jewelry display at a Hawaii store - but ended up leaving empty-handed. Footage from a surveillance camera showed the men attempting to smash and shoot their way into the display cases.

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However their attempts were foiled by reinforced glass which refused to shatter despite their efforts. The men eventually fled, leaving the store without any loot.

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