Fry bacon until crisp. Remove and save bacon. Brown onion and bell pepper in bacon grease. Pour in beans, brown sugar, mustard, garlic. Mix well. Add worcestershire and liquid smoke until color darkens. Crumble bacon and mix. Taste. Beans should be very sweet. Adjust brown sugar, worcestershire and liquid smoke to taste. Simmer slowly, covered, stirring often for 30 minutes on low heat. May be made ahead. Beans will thicken and sweeten with age. The ingredients are adjustable to your taste.