I saw this game on another forum, and it's really fun, so I thought I'd start it here.
The rules are, you make a wish, and the person posting below you grants it, but with an evil twist. Be creative!
Example:
person A:
"I wish I were in the tropics."
person B:
"Granted, but you're on the beach being oiled up by a 90 year old former sumo wrestler."

I'll start:

I wish I were an amazing dancer.