Billionaires take a lot of crap online -- and apparently at art exhibits, too ... because an artist's new piece depicts them as robot dogs pooping out digital art prints. The exhibit's the talk of Art Basel Miami Beach ... crafted by the artist Beeple , it's titled "Regular Animals" -- with flesh-colored robo-dogs wandering around a pen wearing super-realistic masks. Elon Musk , Mark Zuckerberg , Jeff Bezos and Pablo Picasso are just a few of the famous faces worn by the pups that wander around