“Since when have you had this problem?” said the psychiatrist.

“I don’t remember,” said the patient.

“How did it happen? Anything specific that caused it? A bump on the head maybe? A violent sneeze?”

“I don’t remember.”

“Does anyone in your family remember? Or any of your friends?”

“I don’t know if I have a family. Or friends.”

“Why not?”

“I don’t remember any of them.”

“The last time you were here, you said…”

“I’ve been here before now?”

“Yes. And the last time you were here, you said…”

“Yes?”

“I don’t remember.”