http://www.cleverbot.com/ there talk with this bot and he want to beat you and prove you dont exist.You must show him you are real human.Start talk about normal things than he come to more serious questions and things and sometimes he turns out the topic.And when he say he like you and say you are human you wins.There is bug sometime he get stuck and cant answer,so then you need to begin again (refresh website).It is fun,but sometime it make me angry or frustrated.So enjoy.