I was playing TMW and suddenly game crashed. When i logged in again i found a knife. I picked it up. When i clicked on empty place in equipment i saw description of that knife. When i clicked "Drop" and selected maximum amount of items to drop i saw an especial number of knives.
Here's a screenshot of this bug: http://img216.imageshack.us/img216/4525/bugri3.png
That red circle is a place where i clicked.
