For example, if you wish that someone else has red hair, it will give you red hair. And if you wish to have red hair, it will give it to someone else. And a wish that someone becomes your slave will be reinterpreted as a wish that you become someone else's slave. Everything gets reversed.
Jon woke up and picked up the stone, not realizing it wasn't his stone.
"I wish Karyn was in my bedroom and was totally naked," Jon said, with a devious grin. Ever since she wished up her enhancements, he had been dying for a look.
The stone glowed, as usual, but what happened next was totally unexpected. At one moment, he was in his bedroom wearing his T-shirt and pajama bottoms, the next, he was standing in Karyn's bedroom. And he was naked!
Unknown to Jon, his wish was granted as though he said "I wish I was in Karyn's bedroom and was totally naked."
Karyn, who was still in bed, woke up and nearly screamed. She turned on her nightlight to see who the intruder was and saw that it was Jon. And he was naked. "Jon, what are you doing here?!"
Jon grabbed a blanket and tried to cover himself up as best he could.
"Eww. Get that off of you! I don't want your body touching it."
"But I'm naked, Karyn." How did this happen? This wasn't what he wished for.