Continuity mistake: When Eliott is lying on the couch talking to JD way her stethoscope changes position between shots.
Continuity mistake: When JD suggests that Dr Cox turns to Elliot for help, the metal file that Dr Cox is holding turns around between shots. In some shots we see the plain, smooth side - in others, the ridged side with a label.
Continuity mistake: Turks hands change positions from holding the tissue box at the bottom, to gripping the top of it. (00:15:40)
Answer: Dan was drinking beer and Cox feared that Dan might get so intoxicated he would fall asleep and drown in the tub.
Mortug