Mr. Chronos: "Well, I had this really bad back pain going into my right leg after moving some furniture, and it lasted about a day, then got better."
Dr. Grumpy: "When was this?"
Mr. Chronos: "Last spring, maybe around March."
Dr. Grumpy: "So, wait... You had back pain for one day 9 months ago? And you're coming to see me now?"
Mr. Chronos: "I didn't want to forget about it."