A tenant in my building recently got a dog.
She's a small person; the dog is a large black lab.
Most labs I've encountered are quite friendly.
I have a dog. I've been around dogs most of my life. There are many dogs in my building and I get along with all of them.
But from the first, her dog was aggressive towards me, growling angrily when I'm nearby. And even if I'm not nearby her dog is focused on me.
So now I am nervous for my safety going into the lobby.
I haven't contacted the management yet.
What to do?