OK, this is adorable

Picasso had a wiener dog. I know this because my son just brought home a book from the library entitled Lumpito and the Painter from Spain. The dog, Lump (pronounced "loomp" which is the German word for "rascal") was owned by a friend of his, but when the friend brought Lump to Picasso's house, the dog basically dumped the friend for Picasso. The friend, a renowned photographer, later wrote a book: Lump: The Dog that Ate a Picasso, which I'm going to get as soon as I can justify it. The dog even has his own Wikipedia page because Picasso painted him into several of his works. You can read an article about him here. And here's a Google image search for "Lump Picasso".