Joke

Once upon a time, there was a female brain cell which, by mistake, happened to end up in a man's head. She looked around nervously, but it was all empty and quiet. "Hello?" she cried... but no answer.

"Is there anyone here?" She cried a little louder, but still no answer....

Now the female brain cell started to feel alone and scared and yelled: "HELLO, IS THERE ANYONE HERE?"

Then she heard a voice from far, far away ... "Hello - we're all down here....""