There could be something to this. Years ago, my adult sister brought a handgun to me and said she was afraid what she might do. She had gone through a divorce and worried it might be a quick way out of her pain. I took the pistol and gave it to the local police. She died last year at age 78 from natural causes. I’m glad she had enough concern for herself and others to take the appropriate step. It took courage. I don’t know how one puts that into law. We can make gunshop owners into psychologists but I’m sure someone could draw up a series of questions to be asked of someone purchasing a weapon.