Continuity mistake: When the family goes to throw Carla through the window, watch the window they throw her towards. The window is made up of at least three sections of glass, each no more than 2-3 feet wide with metal posts between sections. When the shot changes and Carla (well, the dummy of Carla) hits, the window is now only two sections, each about 5 feet wide. The easiest way to tell is watch the metal post farthest to the right. When the shot changes to outside, that post, which should now be farthest to the left, has vanished.
Continuity mistake: When Dr Cox is with Eliott and Turk, his stethoscope changes from under his coat to over it between shots.
Visible crew/equipment: You can see the shadow of the camera after Elliot spins around on the close up before Dr. Cox enters. (00:01:05)
Answer: Dan was drinking beer and Cox feared that Dan might get so intoxicated he would fall asleep and drown in the tub.
Mortug