For a bit of back story; we are currently minding a toy breed dog for family members who have a very young baby and are struggling a little juggling baby and dog needs.
Foster dog has been a delight - she is well behaved and eats almost nothing! (We have a pup who generally eats us out of house and home to compare with). She is insanely yappy but I am slowly training her to stop when asked.
I have had to register foster dog with our vet in order to worm and flee her - her owners couldn't remember when it was last done and our pup seemed to start itching - so I took foster dog for a free vet nurse check. After a full inspection she found that Foster Dog doesn't have a microchip and that she has a small nodule behind her jaw that the nurse feels should be checked by the vet.
I messaged family member suggesting that Dog legally needs a microchip and mentioned the suggestion for a vet check. Unfortunately family member has refused both on account of not wanting to spend any money at the vet on a healthy dog.
I can afford to pay for both and really don't mind doing it but I don't want to go against the owners wishes. I'm not sure if their objection is purely financial or if there is more to it. They are a very young couple and i really don't want them to feel patronised as I feel they have had a lot of that from other family members recently. What would you do?