They both work as binmen in Buckinghamshire and they share a very special brotherly bond. But, that bond has become even stronger for David and Gary Cato - after Gary agreed to donate his kidney to help his big brother.
David has suffered with serious kidney problems since he was two - and its slowly got worse. Heather Edwards reports.
More top news
The latest weather for the east with Philippa
The latest weather for the west with Philippa
Philippa has the Bank Holiday weather for the east