When Angela and Darryl was helping Kevin to key in password in the copy machine, it showed Creed was "working" at his usual desk, but he was already moved into the manager room.
Dwight keeps a pet piranha in his office. It is illegal in many parts of the United States to possess an exotic animal whereas in Pennsylvania they cannot be kept without a permit.
The gun Dwight displays and later carries around the office appears to be a Remington Model 1875, but is identified by Dwight as a Beaumont-Adams. The Beaumont-Adams is a very different looking British service revolver.
When Dwight receives his holster and begins carrying the Beaumont Adams revolver, Andy claims that he's extremely uncomfortable with guns. However, in a deleted scene from "The Duel," he is revealed to own a shotgun for hunting pheasants when he and Dwight are attempting to determine what weapons should be utilized in their duel.