I have Italian Greyhounds, six of them and one yorkie. Four of the IGs are over 14 yrs old. The eight year old IG and Liz, my yorkie, get along great, Angie has always been very gentle with Liz and backs down when Liz gets pushy, as in acts like a terrier
. The IG puppy is a different story. She is a very big IG, very playful and full of energy (hyper). It doesn't help that every toy and every bone in this house is Lizzy's, so anytime the puppy gets something to play with, Liz has to try to get it from her. The puppy can get too rough with Liz, so they are never left unsupervised. NEVER! The puppy also harrasses my seniors if left to her own devices, so if I can't watch her, I crate her.
When I first got Lizzy, I pretty much didn't think I would be keeping her as she was a little rough with the IGs, but she is great with them now. They respect her as a pushy little you know what. It's only the puppy and Lizzy or the puppy and the other IGs who have differences of opinions now.
