Sometimes Cal is selectively unobservant. It's not as frequent as it once was, and friendship with Sherlock has actually begun to sharpen his observational skills a little, but there are still times in his life when it's a necessary tool for survival.

He's going to need to come to terms with the truths about the Stark household in bits and pieces to be able to accept this one. For now, it's incredibly easy for him to overlook.

That table looks convenient! Cal will take a seat.