I reminded him of our most recent adventure, in a nearby branch of Sprouts, and how I had described a clear plastic tub, and its contents.
On that occasion, not long before this conversation, I told him that I held in my right hand a clear plastic tub of peanut butter. It was labelled as creamy, and without salt. It had been prepared locally, in Los Angeles. He asked me for the price. I told him how much it would cost to buy it. He told me to place it in the basket I held with my left hand. I returned my right hand to his left hand, and continued to guide him around the store.
I told him that I thought it had been a relatively painless exercise.