The Healing - S1-E5
Visible crew/equipment: When Loren is at the clinic talking to Dr. Mike about the "little pain" that started from lifting the piano, the shadow of the moving boom mic is visible on the wall and door. (00:09:45)
The Healing - S1-E5
Continuity mistake: Before Loren's operation, when Dr. Mike shows Jake how to administer the chloroform, she holds the bottle in her left hand and the rag in her right hand, but in the next shot both items have switched to the opposite hands. (00:21:20)
Answer: A Cooper was someone who made various things out of wood including wooden caskets and even barrels.