Continuity mistake: The salad on Eliott's fork changes from purple to green and back to purple between shots.
Continuity mistake: Elliot's "Naked" drink changes directions a few times without her touching it while talking to J.D. (00:16:10)
Continuity mistake: Laverne's soda can goes from being on her notepad to on the table between shots.
Answer: Dan was drinking beer and Cox feared that Dan might get so intoxicated he would fall asleep and drown in the tub.
Mortug