Something I saw on my other forum.

Basically if I make a wish like,
"I want 1 million dollars"

The the next poster will corrupt it by granting it, but with bad consequences.
Like,

"You are crushed to death by the weight of 1 million dollars in pennies."

I wish I could go into the videogames I play.

Edit: someone said this topic already exist, but I didn't see it anywhere, so sorry about that.

Oh dude we already have a LOT of those. :I Sorry

Ya I searched for it must have a different title or I'm just terrible at searching.

I wish to see Dissension bringing the thunder.

Diss brings the thunder, but while he uses the thunder lightning strikes you.
I wish that it wasn't so hot outside.

Granted. It becomes so cold that everything freezes and shatters upon impact from anything.

I wish I had a sandwich.

you get my extra sandvich that is toxicated and then you are sent to emergency room.
I wish I can get a job before this summer ends

you get your job, but your stuck in it for the rest of your life.

I wish I could fly

Wish granted. You fly up. And up. And up. And up. And...

I wish I was in a movie.

He does come back to the forum, but he never speaks anymore.
The sad thing is that it might be true, his last login was on the 19th of this month.

I wish I could meet my favorite singer.

You meet him/her, but you get mistaken for someone else and get arrested.

I wish cartoons were real.

without anything to distract children on the weekends ther are riots in the streets.
I wish for a new car

Granted: The car is new to you, but has actually had 5 previous owners and has recently been totaled in a head on collision with a cement truck. Enjoy

I wish I had x-ray vision.

you get x-ray vision but cannot turn it off and everything you look at melts.

i wish animals could talk.

They talk but can only manage to make indistinguishable grunts and squeals.
I wish I didn't have so much to do.

Granted: You are glued to the couch and cannot do anything so you are not expected to do anything. (Also, the TV is broken. Watching TV means you are doing something)

I wish for a vacation.

You get a holiday in Cambodia.
I wish to control time.

You can make clocks move backward and forward in time, but people and things keep moving due to space not stopping.
I wish for infinite pie!

Granted: Pi equals 3.14... (Goes on forever at this point)

I wish to be good at sports.

Done! However, like a true sportsperson, you get injured the first time you try out your newfound abilities and are unable to continue

I wish that I had a giant taco (what could possibly go wrong?)

You get a giant taco made with human flesh

I wish that nothing will change!

Nothing changes, not even movement, you and the entire universe no longer move and everything is frozen.
I wish I no longer had to deal with technical issues.

Granted: All your technical issues have been turned into personal issues.

I wish I had some cake.

you get a cake, but the cake is a lie, you get kidnapped by glados and get burn in incinerator with turrets.
I wish I am a pet in housepets universe.

Granted: You are now a goldfish.

I wish for a soda.

You get a can of beer and you get caught by your parents holding on to can of beer. You are grounded from drinking soda perminantly.
I wish power rangers are gone forever!

Done, but every Power Rangers fan is out to get you.

I wish I had a battle tank.

done, it turns in to transformer and destroy the world.
I wish I have lots of hats

The Fashion police arrest you on suspicion of third degree upper-garment burglary (stealing hats)

I wish to be taller, like Yao Ming!

http://25.media.tumblr.com/tumblr_lptfxc5NAa1r1u0ooo1_500.jpg

You are taller now, but you have Marfan Syndrome and will keep getting taller unless treated.

I wish I wasn't allergic to anything.

wish granted, you're now allergic to everything instead.

I wish I had a computer that could run TF2.

Granted: Your computer grows legs and can now run on a treadmill for two. (It's the best I could do, alright?)

I wish I had a can of soda.

You get a jug of water, enjoy!
I wish for omnipotence.

you get it, but everyone asks you to do stuff for them. (also, unless that was soda water, that wasn't corrupting his wish, it was giving him something he didn't ask for.)
I wish for MLP:FiM to be real.

In exchange, the world as we know it is turned into a cartoon.
I wish for eternal wisdom.

you learn so much wisdom then Your brain gets bigger and bigger...
I wish for free icecream

it's a horrible flavor.
I wish I could see the Beatles perform.

Granted: A bunch of beetles climb on the nearest table to you and start dancing.

I wish I had a football.