Mark: 'I'm paying it forward'

Mark's a sound engineer, who works just over the road from today's mobile blood drive. It means it's quick and easy to save a life; his donation takes just five minutes. He recently moved back to New Zealand after living and working in London, where he became a donor.

It's important, Mark believes, to 'pay it forward'. Back in 2007 Mark's dad was involved in a serious quad bike accident and needed a blood transfusion to survive. It's a reminder for Mark that you never know when you or a loved one might need it.