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" Vikings star and real-world badass martial arts expert, Katheryn Winnick, dropped by Marie Claire on Wednesday to teach us a few tricks of her trade. Winnick, who also happens to be a black belt, spoke of how she teaches self-defense classes from time to time\u2014even while on set in Ireland. Without skipping a beat, the actress took hold of our December issue and explained that it easily can double &amp;quot;as a weapon with the same strength as an steel rod.&amp;quot;  &amp;quot;If you&amp;#039;re on a bus or subway and there&amp;#039;s a sketchy guy across from you or wherever, you can take a magazine...roll it up nice and tight, hold it in the center, and go for the head or groin. Wherever,&amp;quot; she said. Watch out, folks.    "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.marieclaire.com/celebrity/a8647/self-defense-magazine-weapon/>