Thank you for sharing your Dads diagnosis with our community . It can be so difficult as our loved ones decline due to this devastating disease. We watch them change and we know we have to make changes to adjust to this new normal behavior by our loved ones. You sound very concerned about your Dad having access to a car and to guns in his diminished capacity. I would really try to talk to your Mom about your concerns and explain how dangerous this could be to your Dad and to others. I would also share your concerns with your Dads Doctor; maybe they can then talk to your Mom about these very real concerns. We will be thinking of you and your parents. We are here for you. Warmly, Pam-Community Moderator