Paul and Annie are both hound type dogs. Annie being a fox hound mix and Paul being a pit bull beagle mix. Last night, when I took them for a walk, they each caught a scent of something (heaven only knows what) and they were off. Nothing I could do got their attention back and they were in constant pull mode (much to my shoulder's dismay).
Notice how I can't even see their heads? That's because they are glued to the ground. In the top picture, you see a very nice view of Annie's tail high in the air.