DURHAM – Kristin Barnaby, a self-described arachnophobe, found a way to overcome what she dreads at a North Carolina burger joint. “I am going to eat my fear,” the 27-year-old said at the Bull City Burger and Brewery, where she tucked in to a hamburger topped with a crunchy full-grown, oven-roasted tarantula and a side of fries. The tarantula burger was a feature of the restaurant’s April exotic meat month, which in the past six years has featured iguana, alligator, camels, python, turtle and various insects.