It was not what I expected.
As I was nearing the end of my ride today, I encountered two bull dogs, running towards me, in my lane. I slowed down but did not stop for them and as I got within 20 feet they stopped, turned around and ran ahead of me.
About that time, the (apparent) owner ran out into the road, frantically calling them. She was obviously trying to get them out of the road, but they ran past her! As I rode away I could hear her screeching cries. It was sad and comical at the same time.
I figure they were house dogs and rarely let outside. They must have escaped at an opportune time to have some fun.
I was really glad they ignored me and did not give chase. I was too pooped to sprint at that point.