Chop onions and place half on the bottom of the crock pot. Coat the roast with Old Bay and fresh ground pepper. Place on top of the onions. Chop the green pepper and place it in the crock pot. Add the 1/2 can of root beer. Add the remaining onions.
Cook the above ingredients on low heat for 6 1/2 hours. Never remove the lid. After 6 hours, remove the lid enough to gently drain the juices that have accumulated.
Using a couple of forks, gently pull apart the pork. This should be very easy. Add the bottle of your favorite BBQ sauce and several drops of Red Hot, stir, and cook for another 1 1/2 hours (again not removing the lid). I have tried virtually all brands available in the stores and I honestly find KC Masterpiece to be the best in this recipe.