This is a WARNING to everyone that you should AUTO-ACCEPT the auto-bestowal quest in the Broadacres: Goblin-badge. I mistakenly declined the quest after defeating my first Goblin-spearman and I can not get the item to drop again from another Goblin-spearman. I figured that if I waited five minutes, the goblin-spearman would drop the quest item again but alas, it didn't. You should also probably avoid declining any other non-warband auto-bestowal quest that you come across in case this same bug applies to the other quests that are started from a quest item drop on a mob. I have already submitted a bug report on this and I suggest you do the same.
Note: This bug does not impact the Broadacres quest line.