"Get away from there!" he yelped. "They’re hotwired." Jane jumped back warily, flinching, and Alex chuckled with pleasure. "Tamperproof! Put in the wrong password, and the sucker explodes on the spot and destroys all the evidence! And what’s more—if you’re not, like, their friend? Or they’re tired of dealing with you? Then sometimes they just booby-trap it, and blow you away the second you touch the keypad."