Spent about 16 hours chating with cleverbot once, when it asked me what my name was I said it can call me master, several times and so it did. I called it Dave "I can't let you do that, Dave". Also spent a while with "the song that never ends", "all your base" and "this is sparta!", also "its over 9000!". It mostly forgets what its talking about after 2 lines or so.