Cleverbot can never seem to remember what you were saying. (That supports the theory whereby the server lets you talk to people and changes who every 3 seconds...)
I enjoy talking to my own clever bot, made by me on notepad. The bad part is that it only says what you tell it to. So therefore it just guesses what your response will be and answers how you tell it to. You can make it use what you say.
me:So you are a robot. CB:No. You are the souless robot. me:YOU ARE A ROBOT! SAY THAT OR I WILL FIRE MAH LASERRRR!!! CB:That you are a communist. me:I'MA FIING MAH NYAN CAT LAZAR! BAAAAAARGGGGHHHH!!!! CB:It's ok I'm human too. Cleverbot is a secret chat place that hooks up random ppl together. :)