So, Blackstone Fortress has a particular enemy type called "Enemy Psykers". There are two of them, and these particular chaos aligned sorcerers have a particular weapon called a Chaos Stave.

Upon reading it, our friend @salith who was acting as GM for the campaign misread it for a moment as "Chaos Steve". Which of course caused them a moment of amused confusion. It then caused US all amusement as well. Because now they're nicknamed "Chaos Steve" and "Chaos Dave" to the group :3