Put partly frozen chicken in a crock pot. Pour about 8 oz of ginger ale over the chicken. Cook on low for 8-10 hours. Remove chicken, dispose of liquid. Replace chicken and shred with 2 forks. Pour your favorite Barbeque Sauce over the chicken and cook on low for another 2-4 hours. The chicken will soak up quite a bit of sauce. Serve over Hamburger buns. Warms up very well too.