Make a deal with her, you won't feed her dog healthy food if she doesn't feed your dog crap.
I'm being naughty here and sarcastic. Both needs to respect each other's territory which I feel you are more appt to do. I honestly don't know how or if you can get her to respect your opinion.
I like what Yorkiemom1 said so reread her post, she's one smart lady. Me, I'm just starting to be a Yorkie mom.
__________________ Jennifer + Buddybear:  |