Some fixes to the value check

diff --git a/Monomyth.lua b/Monomyth.lua
index adb638d..119fd9c 100644
--- a/Monomyth.lua
+++ b/Monomyth.lua
@@ -49,14 +49,16 @@ addon:Register('QUEST_COMPLETE', function()
 		local bestValue, bestIndex = 0

 		for index = 1, GetNumQuestChoices() do
-			local item, _, _, _, _, _, _, _, _, _, value = GetItemInfo(GetQuestItemLink('choice', index))
+			local _, _, _, _, _, _, _, _, _, _, value = GetItemInfo(GetQuestItemLink('choice', index))

 			if(value > bestValue) then
 				bestValue, bestIndex = value, index
 			end
 		end

-		_G['QuestInfoItem' .. bestIndex]:Click()
+		if(bestIndex) then -- XXX: Debug this one
+			_G['QuestInfoItem' .. bestIndex]:Click()
+		end
 	end
 end)