Probably better that they were deer then dogs. Unless they were bucks and it was rutting season. They get freaking ugly.
Halfsmokes, this is a great video by a well respected barefoot running coach, Lee Saxby.
I was running down a road and I could see what I thought were 3 dogs in the road. I thought, "Damn, those are some big dogs." Thank goodness they took off into the woods. It sure gets the juices flowin'.