[John doesn't seem to have any trouble navigating. And when there's an odd sound in the hospital, he turns his head to look. It's just specifically Sherlock he seems to be oblivious to, as well as Mycroft. He doesn't respond when Sherlock grabs him, just stares blankly around for a moment before continuing to move toward the east exit for the hospital.

He gets a few paces before stopping and looking down with a frown. He looks back to where he's just come from and there's confusion evident on his features. To him, Mary is the only one here, so he speaks to her openly.]

Bloody hell. Really? Great. Lovely death price. Losing time.

['That was a bit... odd,' Mary agrees. 'Only a second or two, though.']

Let's just hope I don't lose a few seconds avoiding a cave-in or something. Maybe I can try the Admin. She'd still have to be here.