duels only (disabled by default)

pets_system/creature_on_target_combat.lua

@@ -0,0 +1,8 @@
+function Creature:onTargetCombat(target)
+    if PETS and PETS.SYSTEM.DUELS_ONLY then
+        if self:isPet() and target:isPlayer() or target:isPet() and self:isPlayer() then
+            return false
+        end
+    end
+    return true
+end

pets_system/pets_lib.lua

@@ -27,7 +27,8 @@ PETS = {
         EVOLUTION = true,
         MOUNTS = false,
         TELEPORT = true,
-        PLAYER_SHARE_EXPERIENCE = false
+        PLAYER_SHARE_EXPERIENCE = false,
+	DUELS_ONLY = false
     },
 
     IDENTIFICATION = {