Sam - was a three-time winner of the World's Ugliest Dog title. He was blind and had genetic problems that caused tooth loss. Sadly, some Chinese Crested breeders purposely breed "ugly dogs." Sam was a rescue dog.
'Marley and Me: Life and Love With the World's Worst Dog' by John Grogan: The heartwarming and unforgettable story of a family in the making and the wondrously neurotic dog who taught them what really matters in life.