Mark was not a feckless, irresponsible father. He did not walk out of his children's lives. Rather, he was ordered out by the family courts, and when he objected - insisting it was his right to see them - he was dealt with in a scandalous way.
Mark Harris went to prison for his girls. He was jailed for waving to them after a court order demanded he sever all contact. It was the most shameful chapter in an extraordinary ten-year custody battle.
He has now 'won' - today, two of his daughters live with him - only because they shared their father's determination to re-establish their relationship.
He has lived every father's worst nightmare, and every miserable step is etched on his face. 'It took ten years, 133 court appearances before 33 different judges, two prison sentences and a hunger strike before I was given permission to be with my daughters again,' he says quietly.