After logging into to Toad for Oracle on a Blade server, the user is given full access in an area allocated to another users drive.
When opening or saving a file, Toad remembers the location that the file was saved to.
Since the previous user was the last user to open a file, the next user to log in is taken directly to the same location on the previous users drive.
You are able to open, edit or save - having full permissions to everything on the previous users drive.
Waiting for fix in a future release of Toad for Oracle