Like Crazy Buffet, the Black Bull was a new tenant in an old steak-house building on Knox Abbot Drive. I never got around to eating at there, though it was somewhere on my "to do" list. It appears that may no longer be an option. The signs on the door suggest a remodeling, but in my experience of restaurants, "remodeling" is like open-heart surgery: You hope for a good outcome, but say your goodbyes anyway. And that's genuine, planned remodeling. The other signs suggest this came on very suddenly, and in fact the Black Bull web-site has no mention of the place being closed at all.
UPDATE 18 February 2014: Added Western Steer to the post title based on comments for the follow-up operation Hard Knox Grill.