An Aventura man was arrested on Friday and charged with having sex with his dog, a Great Dane named Christie Brinkley.Armand M. Pacher, 64, a former insurance executive, was booked into a Miami-Dade jail on a charge of animal cruelty, a third-degree felony punishable by up to five years in prison.Pacher's veterinarian in Gainesville reported him to police after an office worker called him to reschedule eye surgery for the 2 ½-year-old dog and Pacher talked about sex, according to an arrest warrant."She doesn't seem to enjoy it as much when we have sex. Maybe it's because I haven't been...