Corrupt A Wish 4.0

[Dart]

Granted, but its gas station quality. 

I wish I had a gingerbread house.

[rosutosefi]

Granted.
I wish I stopped myself from eating that gingerbread house.

[Drake_XIV]

Granted.  I eat it instead.

I wish I hadn't eaten that gingerbread house... *burp*

[zhangvict]

Granted, you inhale it.

I wish we can all float.

[McSod]

Granted, but without gravity to keep us planted firmly earthbound we all float off the planet and asphyxiate. Way to go. You destroyed all human life. Jerk. :p

I wish to negate his ^ wish.

[Drake_XIV]

Granted.  It is negated while you have floated a couple hundred feet, leaving you to plummet to the streets below.

I wish that this corruption did not happen.

[McSod]

Granted. Nothing changes.

I wish I had a parachute.

[Dart]

Granted, but it is made of fishing net.

I wish for a new pair of nike's.

[zhangvict]

Granted, you gain two small pink play doh statuettes of the greek godess Nike.

I wish we didnt need air to live

[Dart]

Granted, but you need to convince the populace to change the definition of air

I wish for a new Gibson or Ibanez.

[McSod]

(This is my favourite so far)

Granted, but it's an RG.

I wish for a new banjo. :p

[Dart]

Granted, Congratulations you are now in a bluegrass band with Conway Twitty. 

I wish for a keyboard not covered in semen.