[MY OSCAR]

hi , i was worried about the same thing when i brought Oscar
home at 12 weeks. I also have a 3 year old shih tzu
& Angus, Airedale Terrier @ 85 pounds.
Fortunately Oscar does not growl or bark at Angus.
They get along pretty good but i never leave them alone
together. I guess my advice would be always, always supervise
their interactions. You just never know.
My Angus is a very sweet dog but he is much too big
to play unsupervised with a yorkie & shih tzu.
Just take it slow and give them some time to get to know each other.
If it is warm enough where you live maybe you could take them
for a walk together.
It just takes time and a lot supervision...