Cynthia, so sorry to hear about the visit from some rogue pitbulls. I had two horrid visits last year. Still painful to recollect, to be honest.
My gut says that once they visit, they'll be back. Keep a sharp eye.
Kathy, I so very sorry for your tremendous loss. You'll miss him every day. May the angels escort him to the presence of God and may his rest be eternal in that place where the Lamb is the light.
Fred