From a physician's report:
I have been so depressed that I have considered killing myself many times. I decided 30 years ago that I could never safely own a firearm because I knew what I would do with it someday. Even so, I have come close to buying a gun. A few years ago, I had extremely severe, treatment-resistant depression—an epoch more than an episode—that lasted several years and steadily worsened despite multiple medicines and weekly visits to my psychiatrist. Eventually, I did go shopping for a pistol. With great difficulty, I chose not to buy it and committed myself to the hospital instead.