Respond to the “wish” above you in a way that completely… well… ruins it!
Try to make the “Ruining” at least a sentence.
Make a wish at the end of your post.
Example: I wish I was dead.
Wish granted. You suddenly have a heart attack and die. Through some freak experiment you are brought back to life as a zombie and now must feed on brains daily or lose your mind to hunger
I wish to rule the earth