Continuity mistake: The second time that Turk and Elliot are studying in the apartment, papers appear on the table in front of Elliot from nowhere.
Continuity mistake: When JD and Cox are out having a drink and JD is about to leave and says "Look, Dr. Cox. Don't get me wrong. I love getting drunk in my jammies", there is no glass anywhere near Cox. When it cuts Cox suddenly raises a glass to his mouth.
My Student - S1-E17
Continuity mistake: When Turk and Dr Cox are sitting on the bench outside the hospital, the magazine Turk is holding instantly turns around so the fold is facing the opposite direction.
My Student - S1-E17
Continuity mistake: In the cafeteria, there is a bottle of water on the table in front of Turk. This vanishes before Dr Cox comes to speak with him. It is not one of the items on the tray that Kirsten removes from the table.
My Student - S1-E17
Continuity mistake: When Elliot and doctor Kelso are in the closet, Elliot's hair keeps changing between shots.
My Student - S1-E17
Continuity mistake: When Dr Cox goes to speak to Turk in the cafeteria, his stethoscope goes instantly from sitting straight down across his grey shirt, to at an angle across his white coat.
Continuity mistake: When Cox puts on his yellow jacket and pulls the hood over his head he zips the jacket halfway up. Two shots later it is zipped all the way up. We never saw him doing that.
My Old Man - S1-E19
Visible crew/equipment: Right at the beginning of the episode, when J.D. walks along and then stops in front of the desk, you can see the green tape marker on the floor which he stops at. (00:00:05)
My Old Man - S1-E19
Continuity mistake: When J.D. and his Dad are sitting in the canteen, as J.D. says "But Dad, you sell office supplies," a bottle of water suddenly appears on the table between shots. (00:10:25)
My Old Man - S1-E19
Visible crew/equipment: When Turk and Carla are talking about the Cuban restaurant, as Carla walks away and the camera pulls back, you can see two tape markers on the floor, showing both of them where to stand. (00:12:50)
My Old Man - S1-E19
Continuity mistake: When the Janitor's dad tells him to drop and give him 30, the Janitor throws his mop and it lands to the floor. But in the next shot it's standing up in the mop-bucket. (00:13:10)
My Old Man - S1-E19
Continuity mistake: When JD's Dad arrives at the apartment, and sits down to drink a beer, from straight on his jacket is open and his tie is draped to the right. When the shot cuts to a view from the side, his jacket is now open much less, and the tie hangs straight down his shirt.
My Old Man - S1-E19
Continuity mistake: Towards the end of the episode when JD and Dr Cox are talking on the ward, JD's stethoscope jumps between shots from behind his name tag, to in front, and back again.
My Way or the Highway - S1-E20
Continuity mistake: The amount of bites out of Elliot's powdered doughnut changes back and forth between shots.
My Way or the Highway - S1-E20
Continuity mistake: When JD and Cox are talking outside the staff room, just as Laverne walks past, the magazine Cox is holding switches from being held under his right arm to his left in an instant.
My Way or the Highway - S1-E20
Continuity mistake: When Elliot chases after Sean in the car park, for one shot her name tag is flipped up with the back showing, in all other shots it sits normally.
My Way or the Highway - S1-E20
Continuity mistake: When Dr Cox is trying to tell the nurses how to make coffee, between shots Laverne's purple shirt goes from wide open to mostly closed, and her stethoscope moves.
My Way or the Highway - S1-E20
Continuity mistake: In the first scene when JD is playing with the pin art, you can see that his eye sockets have made an impression in the pins. Cut to the close up, and the eye area is completely flat.
Continuity mistake: After JD has done the "Eliott got some booty" song they both walk through a door, a patient in a red dressing gown then walks past. He wasn't there before they started walking and wouldn't have had been able to get there in that amount of time.
Continuity mistake: As Dr Cox is talking to J.D. towards the end of the episode and telling him that he won't let him treat the patient he traded, Dr Cox is putting on his white overcoat. If you look at his collar on the right side it is a little crumpled and not quite straight. The next shot we see over his shoulder and the collar has straightened out. The following shot it returns back to being crumpled up a bit.
Answer: Dan was drinking beer and Cox feared that Dan might get so intoxicated he would fall asleep and drown in the tub.
Mortug