I'm sorry for the delayed response.
The two of you have been married a very long time, I'm not sure if this behavior has been going on for the duration of your marriage, if this is something that started happening recently, or if its only something that happens when he's upset.
If this has been going on for the duration of your marriage, it could be that this is just the way he is (not to say that it's right for him to be this way), if it recently started then it could be that he's experiencing some psychological issues (depression, bi polar, etc) and may need to see a doctor about his symptoms, and if it is something that only happens when he gets upset, it may still need to be assessed by a doctor. A therapist would be able to help him develop and practice coping skills to help him deal with issues in a more constructive manner.
I think you start taking it personal when it starts affecting the life you have together. You can't live hanging on a string, afraid to make a move so he doesn't get upset. That's a form of emotional abuse. If he is angry, then he needs to deal with what's making him angry, or deal with his anger in a more constructive manner.
Probably the worst thing about people who cannot control their anger is that it has a habit of escalating....one minute he's yelling at the dog, the next he's yelling at you. One minute he's kicking the dog, the next he's kicking you. You never know how far its going to escalate.
I would be a little more careful, and if he does start to get out of hand, leave the house, don't try to argue with him or engage him, particularly if he seems really out of hand. Talk to him at some point and suggest that he either control his anger and get a grip on some of the things that are bothering him, because it makes you uncomfortable, or it makes you feel like he might do something worse. Tell him that you'll support him if he goes to therapy, even go with him, if you feel like you're up to doing that. Under no circumstances should you allow him to make you the target of his anger or frustration, and you should let him know that's not going to happen.
I hope this helps, if you have any further questions, feel free to ask, it costs nothing to click reply. If this has helped, please remember to click the green accept button.