Walker has always been weird around certain dogs but its always after meeting them and having a reason too. Lately or rather since Ive been pregnant he will react to certain dogs that hes never met before in his life. And then some he just walks by wanting to play. For example today we were walking back from Publix (grocery store) and we walked by this guy walking an altered male ACD and he wouldnt stop barking and his hackles were up. Ive never seen this dog before in my life and neither has Walker. He wouldnt even stop after they passed he watched him till we turned the corner. The we passed a intact male Boxer that he didnt like at all before because he tried to attack Walker once and he just wanted to play. It makes no scense to me. Is this just something cause im pregnant? or is he jsut weird?