The more time I spend with a friend the more of his traits, which I don't care for, I am seeing. I discuss this with my wife who has done counseling work and she thinks my friend has adult ADHD and lacks social filters, impulse control, etc. Specifically, my friend will make loud and inappropriate (language) comments in restaurants when there are other diners within earshot. He also doesn't seem to think things through or see things from any perspective other than his own. I will try to present the other side of the picture to him and he will have an 'aha moment' but when the subject comes up again at a later date it's like the 'aha moment' never occurred. He is very likeable and outgoing but it's gotten to the point where I can only take him in very small doses. I need to adjust in order for this not to bother me so much but I'm not sure what to do. Thoughts and suggestions would be appreciated.