In a large mixing bowl add ground pork and 1 tablespoon teriyaki glaze. Mix well and for into ¼ pound patties. Add patties to a hot skillet and pan fry to grill on the BBQ for 4-6 minutes. Add the a little butter and add the pineapple rings. Cover and let simmer in butter for 4 minutes. Flip the burgers and pineapples and let simmer an additional 2 minutes uncovered. Place burgers and pineapple on toasted hamburger buns, drizzle with remaining glaze. Serve hot with baked beans and potato salad.