In a small bowl, mix vinegar and brown sugar; set aside. In another small bowl, mix breadcrumbs, chives, 1/4 teaspoon salt and 1/4 teaspoon pepper; set aside.
In a large, deep skillet over medium heat, cook bacon until fat is rendered and bacon bits are crisp; remove with slotted spoon and place on paper towels to drain. Discard all but 2 tablespoons bacon fat from skillet.
Add sprouts to bacon fat, raise heat to medium-high, and cook 3 minutes, tossing sprouts several times. Add vinegar mixture and raise heat to high; cook 4 minutes longer, tossing sprouts until vinegar mixture reduces to a glaze and sprouts are tender. Season with remaining 1/2 teaspoon salt and 1/4 teaspoon pepper. Transfer sprouts to a serving bowl, and sprinkle with breadcrumb mixture and bacon bits.