MAY THIS HOUSE BE SAFE FROM TIGERS (374 pp.)Alexander KingSimon & Schuster ($4.50).
Ex marks the spot of Alexander King. He is an ex-illustrator, ex-cartoonist, ex-adman, ex-editor, ex-playwright, ex-dope addict. For a quarter-century he was an ex-painter, and by his own bizarre account qualifies as an ex-midwife. He is also an ex-husband to three wives and an ex-Viennese of sufficient age (60) to remember muttonchopped Emperor Franz Joseph. When doctors told him a few years ago that he might soon be an ex-patient (two strokes, serious kidney disease, peptic ulcer, high blood...