There are moments of kindness that miraculously can stretch into a lifetime. Such was the case for nearly 30-year-old Ronnie after he knocked on Rob and Dianne's door one Christmas Day in the UK.

Picture this: the year is 1975. It's Christmas in Cardiff, Wales, and a young man named Ronnie Lockwood gives a rap, tap, tap on a door. Rob and Dianne Parsons answer to see him holding a trash bag full of his belongings in one hand, and a "frozen chicken" in the other.

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On the BBC Wales News Instagram page, the question is posed: "Could you imagine inviting a stranger into your home on Christmas Day?" We see a clip of Rob, who explains, "Near Christmas, there's this knock. And I open the door and there's a homeless man standing there. And we invite him in, and Dianne made him a meal. And she said to me, 'Ask him to stay tonight, it's Christmas.' And he never left. He lived with us for 45 years."

Throughout the lovely clip, we see photographs of Ronnie looking dapper and right at home with the Parsons family. Rob continues, "He got a job as a dustman, as I was a lawyer at the time. And Dianne says to me, 'Make sure he gets to work on time.' So she used to make me get up an extra hour early. And I used to drop him off at the dust yard, and then I'd go into the law practice. And I'd get home at night, and he'd be sat in a chair very often, just smiling. And I said to him one night, 'Ronnie, what amuses you so much?' He said, 'Rob,........

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