[Mycroft's huffing and puffing by the time he catches up to Sherlock, though at least his lead wasn't too great. The older brother's distaste for exercise, while necessary and something he participated in regularly, was clear on his displeased face. It sounded like there was a commotion up there, but luckily, the noises were far above. They must be in the clear, at least for the next few minutes.]

We can wait for a car over there.

[He's a bit out of breath. Mycroft points to a street corner, where they'd be out of view of the hospital. He looked over Sherlock worriedly, after all, he'd just suffered an overdose and really shouldn't be on his feet.]