CHARLOTTE, N.C. -- “Ooooh! Oooh!’’ Stephen Weatherly yelled as he noticed a small spot smoldering on his right thigh. The five-year veteran defensive end, who recently signed a one-year deal with the Minnesota Vikings after he was released by the Carolina Panthers, momentarily lost his concentration during a glassblowing session, allowing the hot end of the six-foot pipe he was breathing into while rolling it make contact with his pants. His instructor, Nicolas Emeric, had been waiting for such a mishap, understanding there was less clearance between the pipe and legs because Weatherly (6-foot-5, 265 pounds) is bigger than his typical clientele.