Over on our Rock Candy entertainment blog, we’ve thrown the switch on the latest installment of Arktube, our weekly salute to the best, most interesting and most soul-searingly dumb Arkansas-related videos posted to Youtube.com in the past seven days. This week: Racial tension on a Sheridan school bus, some redneck dudes who are obviously still holding a grudge over the Grinch stealing Christmas, and a discussion of the new Butch Stone Collection of Arkansas music memorabilia at the Old State House.