After reading this thread, I am glad I don't work at your workplace.
I don't like dogs, or any animals much and if I had to deal with this, it would be frightening to me.
One of my clients has a pit pull that is usually crated when I come. They have another dog, too. A couple of weeks ago, the pit bull was out and when I came in, it jumped on me. I almost fell... I was so pissed, told them I couldn't come back, if the dog was not in the cage.
I really don't understand how any employer could allow animals in the workplace. It would be a hostile environment for me.