She went back to her table and sat down. “Bring me the bill,” she said. “I will pay it straightaway.”

The waitress stared at her. “I will bring you the bill,” she said. “But I shall have to add something for myself. I will have to add this if you do not want me to call the police and tell them about how you tried to run away.”

As the waitress went off to fetch the bill, Mma Ramotswe glanced around her to see if people at the neighbouring tables had witnessed the scene. At the table next to hers, a woman sat with her two young children, who were sipping with evident pleasure at large milkshakes. The woman smiled at Mma Ramotswe, and then turned her attention back to the children. She had not seen anything, thought Mma Ramotswe, but then the woman leaned across the table and addressed a remark to her.

“Bad luck, Mma,” she said. “They are too quick in this place. It is easier to run away at the hotels.”

FOR A FEW minutes Mma Ramotswe sat in complete silence, reflecting on what she had seen. It was remarkable. Within a very short space of time she had seen an instance of bare-faced theft, had encountered a waitress who thought nothing of extorting money, and then, to bring the whole matter to a shameful conclusion, the woman at the next table had disclosed a thoroughly dishonest view of the world. Mma Ramotswe was frankly astonished. She thought of what her father, the late Obed Ramotswe, a fine judge of cattle but also a man of the utmost propriety, would have thought of this. He had brought her up to be scrupulously honest, and he would have been mortified to see this sort of behaviour. Mma Ramotswe remembered how she had been walking with him in Mochudi when she was a young girl and they had come across a coin on the edge of the road. She had fallen upon it with delight and was polishing it with her handkerchief before he noticed what had happened and had intervened.

“That is not ours,” he said. “That money belongs to somebody else.”

She had yielded the coin reluctantly, and it had been handed in to a surprised police sergeant at the Mochudi Police Post, but the lesson had been a vivid one. It was difficult for Mma Ramotswe to imagine how anybody could steal from another, or do any of the things which one read about in the Botswana Daily News court reports. The only explanation was that people who did that sort of thing had no understanding of what others felt; they simply did not understand. If you knew what it was like to be another person, then how could you possibly do something which would cause pain?

The problem, though, was that there seemed to be people in whom that imaginative part was just missing. It could be that they were born that way—with something missing from their brains—or it could be that they became like that because they were never taught by their parents to sympathise with others. That was the most likely explanation, thought Mma Ramotswe. A whole generation of people, not only in Africa, but everywhere else, had not been taught to feel for others because the parents simply had not bothered to teach them this.