Don't have a Yorkie yet. ..but have had the same thing happen with our border collie (who is fixed, though not broken
) A man has stopped my husband several times, wishing our dog could breed with his.
He has no idea, what he's doing, nothing about genetics, nothing about health issues with the breed, nothing about temperament. Nope 'they' look good. Sums up some of society today. Our boy wouldn't be ideal for several reason.
Glad your hubby spoke up, mine just smiles and listens, it doesn't annoy him at all.