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The Telegraph. Podcasts.

There are times when we have the choice to take one of two paths, left or right, stop or go.

And that decision, that one moment, can change the course of our life and the course of someone else's.

Like the short minute it takes for a doctor to prescribe

a treatment and inject it into a patient's arm. Decisions like that happen all the time,

and once they're made, that's it. The course of history is set. Adrian was 15 in 1985. He went to

the Lord Mayor Trelaw School in Hampshire. That's a boarding school for children with physical disabilities. People call it Trelaurs.

Adrian has dark hair and big oval eyes and he was a shy kid with haemophilia. Like a lot of boys with his condition, the doctors at school were like his family.

All doctors at God say, you're heroes, and they were our heroes. They were socialised with us,

they played table tennis with us, you're all the guys that help us and make it the bleeds go away.

Adrian was treated by Dr Anthony Aronstam. He ran the haemophilia centre at Trelau's.

Every now and then, Dr. Aronsdam and his wife would invite some of the boys from Trelau's to his house for the afternoon.

It was normally when they'd been quite ill and needed some time away from the bustle of the school.

He had a little swimming pool.

It was just for a few hours to give us some respite.

One afternoon, Adrian was at Dr. Aaronstowns with his friend Sean.

They drank lemonade and ate snacks.

...