With the trader window open, repeatedly click (left or right, doesnt matter) on any item in the trader's inventory. Then press escape. If done right it will cause whatever item is in your hand to be dropped to the floor, enabling you to pick it up for free.
Might take a few attempts, but it's easily reproducible.
With the trader window open, repeatedly click (left or right, doesnt matter) on any item in the trader's inventory. Then press escape. If done right it will cause whatever item is in your hand to be dropped to the floor, enabling you to pick it up for free.
Might take a few attempts, but it's easily reproducible.