after hunting a TON of rats i eventualy found that once you sell a TON of skinns too the 'Skin' merchant'' he will eventualy give you ''unlimited' gold and not take skins from your invatory... i think this is due to fact that the merchants invatory become full then he continues to give you gold for items you have but he cant take . . . i apologuies if this is a known exploit or if its one not to be 'known' then please deleat this post =-) <3 peace love and respect ya'll
P.S. - this was further proven with Crelsith's Help , in not only findeing that once the 'merchant' went in to 'full invatory state'... you could also do this in a 'party' with any skin: bat:boar:rat and the 'party' will gain gold as many times as you click. . .