Did a search and couldn't find anything on this, its a bit naff, but every now and again you come across a funny person
http://omegle.com/

Connecting to server...
Looking for someone you can chat with. Hang on.
You're now chatting with a random stranger. Say hi!
You: Hi
Stranger: hi
Stranger: sex...what do you think of it?
You: my name is rick and i would liek to sing you a song
Stranger: ok
You: we're no strangers to love
You: youknow the rules and so do i
You: a full commitments what im thinking of
You: you wouldnt get this from any other guy
You: i just wanna tell you how im feeling
You: gotta make you understand
You: never gonna give you up
You: never gonna let you down
You: never gonna run around and desert you
You: never gonna make u cry
You: never gonna say good bye
You: never gonna tell a lie and hurt you
Stranger: damn you
Stranger: i got ****ing rick rolled again
Stranger: ****
You: text roll'd
Stranger: you suck nuts
Stranger: daaaammmmn you rick you ****ing ******
Your conversational partner has disconnected.