One of those people was my father. You have no idea how painful it was for me to see him change from a loving Dad who called me his "little bitty buddy" and who treasured and honored his wife, to someone who grossly insulted her in public and whose only real interest when coming home every evening was getting loaded as soon as possible. When he finally quit after more than a decade of addiction, he was fatally devastated by finally seeing the ruin he had made of his family life.