By Gregg WendorfAdvance News JournalHow did this news escape my notice? The world’s toughest cowboy/rodeo star broke his neck last September and has since retired?Not only did J. B. Mauney retire at the age of 36, but he then turned around this year and bought the very same bull that did the neck breaking, Arctic Assassin.Together, the two now hang out at Mauney’s Texas spread in Stephenville, south of the Dallas metroplex.In a sports era when star athletes drink hydration drinks and work out at the gym every morning at 5, Mauney still drinks beer and smokes Marlboros, just like ...