Overheard In The Therapy Room

Therapist: "I'd like you to finish these analogies."

Patient: "Like what?"

Therapist: "Well, for example, red is to stop as green is to...you would say 'go'."

Patient: "Oh, OK."

Therapist: " Good. here's the first one. Hat is to head as gloves are to...what?"

Patient: "Hands."

Therapist: "Great! Here's the next one. Bark is to dog as quack is to...?"

Patient: "Doctor."