"I am the Fairy Godmother of---"
"I don't fucking care. Are you gonna grant me a wish or what?"
"Yes, of course. What do you wish?"
"For all people other than me disappear. Forever."
"B-b-b-but won't you feel lonely?"
"Bitch, this is my life. It has always been my life. People are nothing but a fucking nuisance that should be eliminated. And no, I won't feel lonely. I am alone already."
"Done."
"Woooo-hoooo! So long, motherfuckers!"
And he did whatever he wanted to do, for the rest of his life, which was much happier without all other human beings.
The end.