BBQ Pork Sandwiches

1 pork roast
1 Bottle BBQ sauce

Place pork roast in crock pot. Pour 1/2 bottle BBQ sauce over the top. Cook on low for 8-10 hours or high for 6-8 hours. Shred pork. Place pork back into the crock pot and add the rest of the BBQ sauce. Serve on hamburger buns.