When Rick sharply instructs Chumlee and Corey not to sell his finished blade under any circumstances, he doesn't count on UFC president Dana White stopping by in this clip from "Ultimate Fighting Pawn". #PawnStars #RickHarrisonSubscribe for more from Pawn Stars: http://po.st/SubscribeToPawnStars Watch more Pawn Stars on YouTube in this playlist: http://po.st/Pawnstar_official Find out more about the show and watch full episodes on our site: http://po.st/History_PawnStars Check out exclusive HISTORY content: History Newsletter: http://po.st/HistoryNewsletter Website - http://po.st/HistoryWeb Facebook - http://po.st/HistoryFacebook Twitter - http://po.st/HistoryTwitter Pawn Stars Season 15 Episode 17 Ultimate Fighting Pawn "Pawn Stars" follows three generations of the Harrison family as they assess the value of items coming in and out of their Gold & Silver Pawn Shop in Las Vegas, from the commonplace to the truly historic. HISTORY®, now reaching more than 98 million homes, is the leading destination for award-winning original series and specials that connect viewers with history in an informative, immersive, and entertaining manner across all platforms. The network’s all-original programming slate features a roster of hit series, epic miniseries, and scripted event programming. Visit us at HISTORY.com for more info.