ISN'T IT IRONIC? A fierce gust of wind blew 45-year-old Vittorio Luise's car into a river near Naples, Italy, in 1983. He managed to break a window, climb out and swim to shore - where a tree blew over and killed him. Mike Stewart, 31, of Dallas was filming a movie in 1983 on the dangers of low-level bridges when the truck he was standing on passed under a low-level bridge - killing him. Walter Hallas, a 26-year-old store clerk in Leeds, England, was so afraid of dentists that in 1979 he asked a fellow worker to try to cure his toothache by punching him in the jaw. The punch caused Hallas to fall down, hitting his head, and he died of a fractured skull. George Schwartz, owner of a factory in Providence, R.I., narrowly escaped death when a 1983 blast flattened his factory except for one wall. After treatment for minor injuries, he returned to the scene to search for files. The remaining wall then collapsed on him, killing him. Depressed since he could not find a job, 42-year-old Romolo Ribola sat in his kitchen near Pisa, Italy, with a gun in his hand threatening to kill himself in 1981. His wife pleaded for him not to do it, and after about an hour he burst into tears and threw the gun to the floor. It went off and killed his wife. In 1983, a Mrs. Carson of Lake Kushaqua, N.Y., was laid out in her coffin, presumed dead of heart disease. As mourners watched, she suddenly sat up. Her daughter dropped dead of fright. A man hit by a car in New York in 1977 got up uninjured, but lay back down in front of the car when a bystander told him to pretend he was hurt so he could collect insurance money. The car rolled forward and crushed him to death.