I make a wish, and the next person to post finds an ironic way to derive bad consequences from granting the wish, or to otherwise tag a downside to it, and so on and so forth. Heres an example:
Person A: I wish I could fly a dragon in skyrim!
Person B: Granted, but the dragon only have one wing, so it fly's in circles!
Etc, etc.
I wish Skyrim have euphoria physics!