When a riot on a Croydon bus in 2000 put the lives of teenage twins in danger, Geoff Heathman, had no second thoughts about jumping in to defend the vulnerable boys.

Standing up to a group of armed thugs, the 63-year-old put his own life in danger to save the twins.

But the confrontation left Geoff with a stab wound to the shoulder, and also affected his partner of 10 years, Gwen.

Three years ago, she was diagnosed with bipolar disorder, a manic-depressive illness that causes unusual shifts in mood, energy, and the ability to do day-to-day tasks.

It was then she realised how much of a champion Geoff is and she decided to nominate him for Croydon Champion Parent of the Year.

Gwen, 45, explained his support was invaluable to her – describing him as her “rock” – helping her through the depression and taking care of their three children, 17-year-old twins Matthew and Benjamin, who are students at Croydon College, and 20-year-old Kim.

Geoff described the last three years as being difficult, but explained things were slowly getting back to normal.

Gwen said: “He has been there for our children in every way. We all love him and our children are what they are today because of him. He is my strength.

“He really deserves this. I do not know what I would do without him. He is kind, thoughtful and loyal. He would do anything for anyone.”

Speaking about the attack, Geoff recalled: “It was something anyone would do.

"I would not be able to sit back and watch those twins get hurt, I have twins myself. It is something everyone should be prepared to do.”

He has worked for 17 years as a driver for Phab, a charity that aims to promote and encourage people of all abilities to come together and achieve complete inclusion within the wider community.

He also has a black belt in judo, and has been coaching on a Monday night at Croydon Judo Club for 29 years.

He said: “I enjoy giving back to the community. I’m happiest when I’m helping others.”

Do you know someone who should be nominated as a Croydon Champion? Visit croydonguardian.co.uk/croydonchampions