In the scourge invasion, the item Haunted Momento makes a shade follow you.
But, if you right click it on the backpack while talking to the banker almost instantly, the banker should... vanish.
EDIT : I were kinda "rushy" and forgot to mention that only happens when the shade is not aviable.
Not aviable as in : Not nearby and wont be near, this can happen by run from it or get a non-combat pet.
And here, you greedy picture-beggers.
Use this exploit, and release The Wrath of the Bank Stealers.![]()