how do you tell someone to quit feeding your dog "human" food, without being rude?

[Catty1]

Maybe next time you take your doggies for a vet check (heck, invent one! )
bring back note from the vet about the "diet" they have been put on. Hopefully you will have several pieces of paper from the vet, and maybe your FIL will have a look through. "Oh, yeah, he gave us stuff about the dogs, I haven't read through it yet.", and hand it to him or just set it down somewhere.

Or - "Don't ask me, as your vet." I assume they used to have one?

HUGS!

[Giselle]

Somewhere along the evolutionary path, it got into the human mind that feeding = showing affection and love. So, if your in-laws feel compelled to feed your dogs tidbits, provide them with healthy, low-calorie snacks that you can easily burn off with a daily walk.

For example, keep a bowl of plain boiled peas or carrots or apples in the kitchen. Should your father ever feel the need to feed the dogs, let him take a bit of a veggie or fruit and give it to the dogs. If you're lucky, the dogs will dislike the food. If not, so be it. In the meantime, ask your in-laws to go to the vet with you and have him explain the potential severity of the situation.

As they say, edumucation is the answer