Make a Wish. Have it horribly corrupted.

[Captain Jigglypuff]

Granted. He then kills you violently with a dull electric knife because he's been excessively drinking again as usual....

I wish I was a My Little Pony!

[SirBlaziken]

Granted. However, one of those bronies buts some unsavory art of you on the internet.

I wish I didn't have a sore throat.

[sans the skeleton]

Granted. Now you don't have a throat.

I wish I had more friends.

[Captain Jigglypuff]

Granted. You HAD more friends. But not now that you killed them!

I wish I was a My Little Pony!

[SirBlaziken]

Granted. However, one of those bronies puts some unsavory art of you on the internet.

See above quote.

I wish my computer wasn't so screwed up.

[ShiraBliss]

Granted! However, now it runs on tears. You must cry for your wifi.

I wish wasn't in debt from student loans :3c

[SirBlaziken]

Granted, but you now have to pay your medical bills, and you just got cancer.

I wish that I didn't have allergies

[Captain Jigglypuff]

Granted. Now you have SUPER allergies! If you go near one of them, you'll head will pop like a balloon!

I wish I had a pet unicorn!

[SirBlaziken]

Granted, you now have a single ear of corn.

I wish that my computer's display was fixed.

[ShiraBliss]

Granted, but you now have to pay your medical bills, and you just got cancer.

HAAAAAAAAAA I have appendicitis last month and I got a huge bill for that already :')

Granted, but now your computer can only display things that make your grandma cry.

I wish for a raise.

[Captain Jigglypuff]

Granted. You are raised 10000000000000 feet into the air and then dropped and break your neck upon.

I wish I had a gold PS4!

[Sizacu]

Granted, but it's spray painted gold and the coating doesn't conduct heat very well.

I wish I could have some pudding.

[Captain Jigglypuff]

Granted. You get Puddin' from The Grim Adventures of Billy and Mandy. And he brutally beats you up when you accidentally hurt a bunny. With a frozen salmon and a tire iron....

I wish that I could go to Spain!

[The name master]

Granted. You get on the wrong plane.

I wish that my animation (Search For The Lost Box) was re-made with better animation and graphics by Nintendo.

(I just want to see how you could corrupt my wish)

[Petzbreeder]

Granted, but nintendo don't give you any credit or anything for making the original version. You take them to court, claiming the work is yours but nobody believes you.

I wish that Ki energy (From Dragonball Z) was real and that I could use it to fly and use the Kamehameha.