SALT LAKE CITY (AP) -- Gunnison High School has received angry phone calls since news reports that biology students witnessed surgical exploration of an anesthetized dog before it was euthanized. South Sanpete School District officials said such demonstrations will not be performed again. "It's an unfortunate incident and one we don't condone or defend," district Superintendent Jim Petersen said. School officials said the operation, allowing the students to see the dog's digestive system, was performed by a veterinarian on an anesthetized Rottweiler scheduled to be euthanized. "The dog had no feeling as to what was going on. The dog did...