After Samantha zaps Darrin a drink, he collapses with it in his hand. In the next view of him, he is in a chair and the empty glass, rather than spilling on the floor is sitting on the table with the straw still in place.
Samantha begins messing with the top of Sheila's hair at the dinner table by repeatedly pushing several locks of hair down onto Sheila's forehead. As a result, Sheila's hair becomes visibly parted in the center on top in several places. When the camera changes for another closeup, her hair is once again perfectly combed with no visible parts.