Sure they will. I once had a dog stick its teeth in me, although it let go when I said the Shema.
And several people in my neighborhood have been bitten by dogs recently.
I’ve had dogs threaten me and run after me many times.
When I was a kid, a dog was threatening me once and I got away, but I heard from a neighbor afterwards that he attacked someone else.
I have often heard of dogs attacking people.
I REST MY CASE!!!