"Yes, I remember yesterday, Jack," Why wouldn't he have remembered yesterday? Daniel had the feeling that he was missing something that would explain Jack's behavior, and that was only confirmed when Jack seemed to be celebrating the fact that Daniel could remember yesterday.

"Jack," Daniel was interrupted by another sneeze, "would you mind telling me what's going on?" Or at least, what Jack thought was going on. His behavior was almost as confusing as this situation. Almost. This was Jack they were talking about, after all.