It’s all a question of stopping power. If you’re out for a lark and looking for momentary stun capacity, you’ve got the Slate arsenal. If, like the big A, you play for keeps, you’ll want to upgrade to what Popular Mechanics has got cooking. Be sure to watch both clips at the PM link, incidentally (by clicking the image below). There’s nothing you haven’t seen before in the second video but it’s comedy gold.

I don’t mind telling you that the words “Taser-armed robot and what amounts to a Taser landmine” have left me feeling a little frisky.

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