Most people think I save dogs, but really they saved me.

Niall Harbison is a dog hero based in Thailand. He spends his days feeding, caring for and rescuing the many street dogs he comes across. With every rescue there's a story. Like the sweet gentle McMuffin who was found with many tumours and hours from death, only to be nursed back to health. She now lives with Niall and is a popular member of the pack. Then there is King Whacker - who escaped a vicious attack and is now ruling the nest living up to his name as the king of the all good dogs. And who could resist the puppy eyes of little Rodney, the beautiful dog with big paws who is melting millions of hearts around the world.

Originally from Dublin, Niall was the owner of a successful advertising company. After selling it, he moved to Thailand where his addictions - drugs and alcohol - almost got the better of him. One day he woke up in hospital, close to death, and realised that something had to change. And that was what spurred him on to start saving and helping street dogs. His aim is to help 10,000 street dogs.

This is his story.