My grandfather stopped helping strangers on the road in the autumn of 1998, and he had a reason.
He drove a lorry between Tashkent and Termez for twenty-six years. In September that year he stopped to help two men with a flat tyre south of Guliston, at night, and while he was under their car with their jack, one of them took his bag, his documents and eleven months of saved money out of his cab.
He walked into the police station in Guliston at four in the morning and he never got any of it back.
After that he drove past everybody. My grandmother says he would go quiet for about a kilometre afterwards, every time, and then talk about something else. He went on driving that road for another eleven years like that.
My father took over the lorry in 2011, and he has a different rule, and it is written on a piece of card above the windscreen in handwriting I know: Always stop. Lock the cab. My grandfather wrote that card himself, which took me years to understand.
In February 2016 my father stopped to help a woman with two children and a dead battery on the Guliston road, at eleven at night, in the rain, at almost exactly the same place.
He tried to start her car from his own battery and it did not work. Then he tried putting the children in his cab with the heater on while he waited with her, because a woman does not get into a lorry with a stranger at eleven at night and he understood that immediately.
They waited four hours for her brother to come from Sirdaryo. My father lost half a night and, somewhere in those four hours, a phone that he had left on the seat with the door open.
He remembers standing in that rain and thinking about his father under the other car in 1998, eighteen years and about two hundred metres away.
He did not stop helping people. That is the whole story, and my grandfather knew it would go that way, which is why he wrote the card instead of the rule he actually lived by.
My father is fifty-one. He tells me two things every time I take a car anywhere: remember to lock it, and do not stop being the kind of person who stops.