I was driving on a two-lane highway and saw a deer up ahead on the side of the road so I started slowing down. The deer saw me, panicked and ran into the brush/woods, then changed direction and ran out and back toward the highway. I kept slowing. It changed direction and ran back toward the woods, changed direction again and ran back toward the highway. By now I was at a full stop and parallel to the deer. It ran head first into the side of my truck, fell down, got up and sort of stumbled back into the woods…