Other mistake: When the Janitor plays with Kelso 'double or nothing' for tossing the cotton ball a second time in the jar, Todd tells Kelso he now owes him $600, in the end it was $700. This isn't a 'double or nothing' amount of money the Janitor could generate. They started with $5, so the count would be 5 - 10 - 20 - 40 - 80 - 160 - 320 - 640 - 1280 and so on.
Continuity mistake: When Carla and Turk tell JD that he is around them all the time, it cuts to a scene with Carla and Turk in the tub while JD is using the toilet. It cuts back to JD saying "And here I thought that was a lovely evening" while he is holding a bowl of popcorn in his hands. When it cuts the bowl is suddenly on the table.
Plot hole: In this episode Ted claims he lost his hair in 8th grade (and was subsequently able to help his junior high girlfriends friend rent a car). But in Season 1, Episode 8 "My Fifteen Minutes" Ted tells Dr Kelso that when he started as the hospitals legal counsel he still had his hair.
My Boss's Free Haircut - S4-E20
Other mistake: When Bob is trying to get into the patients room, he uses a screwdriver to break in. The door opens into the room with the hinges on the inside, theres no way he could get at them and the door frame is intact as shown when the door falls in.
My Boss's Free Haircut - S4-E20
Revealing mistake: When Carla and Elliot are walking through the graveyard, Elliot falls into an open grave. After she has fallen off the bottom of the screen, you can see her ankle flick up in the bottom of the picture, showing that she actually just fell down on the floor during shooting.
My Boss's Free Haircut - S4-E20
Continuity mistake: Dr Cox asks Dr Kelso the last time he looked after a patient and it flashes back about 20 years, but in the episode "My Karma" (season 2) Dr Kelso gives Elliot his patients to take care of.
My Boss's Free Haircut - S4-E20
Continuity mistake: After Elliott falls into the grave, she tries to pull herself out by placing both hands on the edge of the grave and jumping. When she falls back in again, there are two clumps of dirt missing from the edge where her hands were. In later shots, the edge of the grave is unmarked.
My Big Move - S4-E22
Continuity mistake: Episode 22 - season 4. When Turk goes mad and throws the chips all over the table the chips' positions on the table differ between shots.
My Big Move - S4-E22
Continuity mistake: Episode 22 - season 4. When Carla is trying to justify her kissing JD and she says "You know how upset I was when you started calling you ex-girlfriend" to Turk she holds her arms down. When it cuts she suddenly rests her right arm on the couch.
Continuity mistake: When JD is trying to make a point to Turk about Turk hitting him much lately, Turk raises his fist about to hit but stops and we see his hand is closed. It cuts and his hand is open, and cuts back to being closed.
My Drive-By - S4-E24
Visible crew/equipment: When Doctor Cox looks at himself in the gold balloon each time, look slightly to the right of the shot, you can see the camera and part of the camera man in the reflection. (00:08:00)
My Drive-By - S4-E24
Continuity mistake: When Dr Cox, Turk and Carla are talking about what happened at the Taco stand, at some point a pen suddenly materialises on the desk. None of them were holding a pen either. (00:10:25)
Continuity mistake: At the beginning when Dr Cox is talking to Dr Kelso, behind Dr Cox is a women handling a green stuffed toy which she puts down. The shot then cuts to the son and wife of Dr Cox and then back. The woman has the stuffed toy back in her hands.
Continuity mistake: When the woman in the tub comes crashing through JD's roof the pieces of wood around her change position between the shots.
Continuity mistake: When Elliot and her new boyfriend are sitting outside in the car Elliot's seat belt change position between the shots.
Continuity mistake: When the girl in the bathtub comes crashing through the ceiling, she has her hands covering her upper chest and no bath bubbles. The next shot there is a great deal of bath bubbles all over her and we cannot see her hands covering her chest. As the guy falls through the ceiling, the bubbles on the woman again disappear and we see her hands.
Continuity mistake: Turk times Carla's pregnancy test by putting some mini snacks in the microwave. Then, just afterwards, they're all neatly stacked next to him even though neither of them went near the microwave.
Continuity mistake: While Dr. Cox is explaining to JD why he allowed the patient to worsen, the remaining "man" card in the pocket of JD's scrubs raises and lowers between shots.
Continuity mistake: In the intro, JD comes running back into the shot after trying to change out of the same exact outfit Dr Cox is wearing. JD has the "Baby Gap" TShirt stuck & wrapped around his head turban style. The shot switches to over his shoulder and the shirt is now loose, like a towel wrapped around his head.
Continuity mistake: When J.D. walks up to the table where his interns are sitting, Keith and Rex are fighting with their table knives and have them crossed. The shot switches to a view from the other end of the table and suddenly Rex's knife is on the table and he is facing J.D. but Keith's knife is up in the air as if he was still fighting with Rex. There is not enough time for Rex to put his knife down and turn to face J.D.
Answer: Dan was drinking beer and Cox feared that Dan might get so intoxicated he would fall asleep and drown in the tub.
Mortug