Yes, I think dogs can feel guilty. When my mom yells or something Snowball will go hide under the end table in my living room or under the computer desk. Or if she takes something and we tell her not to do it again she puts her head down low and her ears go down lower too. Today my dog Snowball took a plastic thing of flowers and it was in her mouth. I said "Looks like Snowball wants to get married." and my brother Nick said to Snowball "Who's the special dog Snowball?". I just laughed.