OK... so I have a dog... and a cat.... they are my de-facto kids at the moment.
When I travel for work they have to go to the boarding kennels and cattery. I reckon I should be able to claim this as a work expense- I would not be incurring the expense were I not travelling for business.
The stinking IRD says that I can't. I could however claim it if they were real children. Though were that the case I'd probably be getting enough Working For Families that I wouldn't need to be travelling and instead could stay at home on my ass watching Sally Jessie.