Continuity mistake: The head of pediatrics is talking about Doug to Mark and Dr. Morgenstern and is holding his glasses in one hand. From one shot to another they flip right over in his hand, with no time for him to change them.
Continuity mistake: Molly's mother walks away from her daughter's bed and towards her ex-husband and has moved about a foot from the bed; the next shot goes back to Molly's face and we can see her mother's hand still on her shoulder, even though this would be physically impossible.
Continuity mistake: When Mark is having breakfast with Rachel and they are talking about skating, her table napkin, which was under her left elbow, falls to the floor. However, the next shot shows it back on the table, with her knife on top of it.
Do One, Teach One, Kill One - S2-E3
Continuity mistake: Near the beginning of the show, Susan is talking to Kerry while holding baby Susie and a stuffed Sylvester the cat; the toy is in a different position in each shot and in the last shot it has disappeared altogether. As Susan walks away, the toy is in the diaper bag, although we never saw her put it there.
Continuity mistake: In this episode Susan is thinking about giving little Susie up for adoption, throughout the episode the baby playing little Susie switches from a brown eyed baby to a blue eyed baby.
Continuity mistake: Carter makes an upward motion and grabs Angel's paper cup of booze from her - but in the next shot there is no sign of the cup and he is holding a clipboard. There was no time for him to get rid of it.
Continuity mistake: Carol's notary asks her for some water and she takes the cup in one hand and the jug in the other and pours. The next shot shows one hand still pouring and the other up on her papers. She had no time to put the cup down and move her hand.
Continuity mistake: When Carter first starts to confront the drunk patients Angel and Nathan, the door to their room is open behind him. Angel falls to the floor and the shot shows the door is now closed. The shot goes back to Angel laughing and the door is ajar again. Then it's closed again, and then open when Susan comes into the room. All this happens within a few seconds.
Continuity mistake: When the little boy pounds on Doug's car window, the light outside goes from twilight to dark to twilight again, all in a few seconds.
Continuity mistake: When Susan and Chloe are doing the dishes, there is a dish towel in a bowl to the left of Susan. As Chloe takes baby Susie away, the towel disappears.
Do One, Teach One, Kill One - S2-E3
Continuity mistake: As Susan walks along the fence, shouting at Chloe, baby Susie is completely wrapped up in a blanket, although in the shot before one arm was free and Susan never tucked it in.
Continuity mistake: As Chloe is leaving the kitchen, there is a bowl to the right of the sink, but when the shot goes back to Susan, the bowl has mysteriously disappeared.
Do One, Teach One, Kill One - S2-E3
Continuity mistake: Near the end of the show, Susan is holding baby Susie and talking to Chloe through the chain-link fence. In one shot we see the back of Susan and Susie's head, but as the shot switches to Susan's face, we see the back of the baby's head again, without her ever turning her head.
Continuity mistake: When Susan knocks on Chloe's door, we see her holding the baby's toy but when the shot goes to Chloe's face, baby Susie is now holding the toy, but it returns to Susan's hand in the next shot. There was no time for any transfer.
Continuity mistake: When Vuselich is lecturing Peter about his medical study, and we see Peter's face, his cap is pulled down over the top of his ears. When the shot is on Vuselich's face, we can now see the tops of Peter's ears. It continues like this for the whole scene.
Continuity mistake: When Doug is outside with his father, and the shot is on Ray, we can see a lot of snow in the air, but when the camera goes to Doug, there is no snow at all. The snow distribution on his father's coat change from shot to shot as well, too much to happen in only a Split Second.
Continuity mistake: Carol is signing papers for the notary and he is complaining about his job - he has one hand up on his large book and the other in his lap. The shot changes and his arm and hand are under the book, with no time to shift naturally.
Continuity mistake: Early in the show, Mark is going into an office to meet with Morgenstern and another doctor. As he opens the door in the hall, his bag is slung over his right shoulder, but when the shot changes and he's entering the office, it's over his left shoulder. He had no time to change it.
Continuity mistake: Susan goes to see the patient Mrs. Garvey - we can see the sticky tape on her right shoulder, but as the scene progresses, her gown is pulled up, covering it - even though no one adjusted it during the scene.
Continuity mistake: Harper is talking to Mark about her night with Doug and her stethoscope is hidden in her collar and lapel on her right. As the shot changes and she turns, it is suddenly fully visible and the left side has moved much further up towards her neck.
Answer: Take care of your dad.