Hadley's other pet project is a system that breaks down hydrogen sulfide in sewer lines.

FORBES: Germ warfare

BUT, read between the lines, most dogs obtained from shelters did not emanate from a loving dedicated breeder, so be prepared for challenges and a lack of a support system when pursuing this commendable route to your next pet.

FORBES: ASJ: What was Maisey��s life like before you got her?

The scheme has been introduced after pressure from pet-owners and animal welfare groups, who argued that the present quarantine system had caused suffering to animals with almost no cases of rabies being found.

BBC: Pet 'passports' brought forward