I'm afraid I agree with Kizzy's mom and Jiggityjig on this one. I always ask if Topher is allowed to come, and if it's a situation where the hostess thinks it would be best if he stay home, I don't worry about it. It is her home after all. Most of my friends have dogs, so it's never usually a problem, but I do have some friends who aren't dog people and that's okay. I can't expect everyone in the world to love yorkies as much as I do!
And though I do love my little yorkie boy, my people friends and family do come first...we, too have lost many, many family members unfortunately, (my husband lost his whole family) and the ones remaining are very precious to us.