Female brain cell

[rebbonk]

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 ...

Spoiler:

"Hello - we're all down here...."