From Here to Maternity - S5-E24
Revealing mistake: After Michael shows up at Kimberley's place then visits her bedside to be informed that she's very sick, the nurse asks him about any next of kin he can call, and he picks up the phone and immediately dials then says "Hello, Mrs. Shaw?" when he's never once called Kimberley's mother.
Screams from a Marriage - S5-E22
Revealing mistake: Kyle is busy setting boxes of Taylor's things outside as Sydney walks up and asks what's going on. He tells her he and Taylor are separated. Then he sets out a couple of suitcases and Taylor shows up. They get into it in the doorway just as Taylor yells "Go to hell" before picking up the suitcases and suddenly the boxes are nowhere to be seen.
