The gameshow winning supercomputer that couldn’t stop saying ‘bull*...: IBM forced to wipe hard drive after machine downloaded an urban dictionary
Watson proved incapable of mastering the subleties of good mannered repartee and, after he began uttering obscenities, his masters were forced to delete the taboo vocabulary.
Watson unfortunately learned all of the Urban Dictionary's bad habits, including throwing in overly -crass language at random points in its responses; in answering one question, Watson even reportedly used the word "bullshit" within an answer to one researcher's question. Brown told Forbes that Watson picked up similarly bad habits from reading Wikipedia.
In the end, Brown and his team were forced to remove the Urban Dictionary from Watson's vocabulary, and additionally developed a smart filter to keep Watson from swearing in the future.