I am so sorry to hear this, I hope you, the chick's owner, and Phyllis will get through this.
My best condolences go out to you Bob!
I wish people would have the smarts to control their dogs!
We have a neighbor who allows their old bulldog to run free in their yard, but their yard is right down the driveway from ours, so when they are out, we can't even safely take our dog out in front of the house much less down the driveway.
It isn't super aggressive, but it can't be trusted, and it will chase anyone near the yard down, and it is an accident waiting to happen because it even chases us while on bikes.
Sorry for the rant, thought I would give a personal experience.