Sally Donovan surprised herself by volunteering to take one of the guard shifts at the hospital, and said as much, at length, to the sympathetic lady doctor who had been called in because her card was found in John Watson's wallet. It wasn't an easy job, either, fending off the landlady from Baker Street and the motley assortment of ex-cons and future ex-cons who turned up claiming to be friends of Sherlock Holmes.
Funny that, though. Up till now, she'd have sworn that the only real friend the freak had was the man lying in the bed across the room.