Even a robo-phobic child would have a hard time being scared by the Daleks, the robot-like aliens from Doctor Who; the supposedly terrifying beings traveled around on wheels, so you could escape one by stepping onto a curb.
Well, times have changed, as have robot bodies. Boston Dynamics' Atlas 'bots could already catch up to you on open ground, and with recent upgrades, it looks like they could now run you down on an obstacle course:
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I'm thinking your best defense would be to carry a bag of ball bearings.
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