the urine expert in the room — "as they hear Charles Tavis addressing…"
as they hear Charles Tavis addressing the urine expert behind them, asking him very quietly please to close both doors.
Context
The disciplinary reckoning's real weapon revealed last, hidden behind them the whole time: a urine expert, "severely underdue," summoned to the boom-lowering — the clean-urine anxiety that runs under E.T.A.'s whole drug economy walking into the room in a blazer. The doors close on a piss-test the secret users have been dreading; the sword over the habit made flesh.