This is simple:

Someone says a wish, and you make a nice answer with a bad following:

Example:

Person 1:
I wish I was rich

Person 2:
You get rich but everyone near you dies

OK, here we go with my wish:

I wish I had Windows Vienna Alpha

You got it, but the software corrupted, mutated, and took over your computer and grew appendages. You're now being chased around your house by a killer MS product.

I wish I had my own private starship.

You get a starship, but it it gets lost in the Delta Quadrant, and you have to face the fight between Borg and Species 8472.

I wish I has a Core 2 Duo

You get a Core 2 Duo, but your harddrive crashes.

I wish I had a Corvette.

You get a Corvette and then crash it.

I wish I had a Motorcycle...

You get one but it gets shot in the gas tank so you can kiss it goodbye!

I wish i had one of theese processors: http://en.wikipedia.org/wiki/Sandy_Bridg...tecture%29
16 gigs of RAM(or32),a radeon r800 and windows 7!

You get the system, and find out that it's Prescot v2, and it burns down your house.

I wish I had a crystal ball.

Yuo get it but then it falls on your head and you have to watch ugly nurses two weeks.

I wish i had CoD4.

You get it and then find out that you are in a holodeck with the holodeck controls offline, and get shot.

I wish I had a new laptop, as mine died

You get it but it you thhrow it from a cliff because the drivers suck!

I wish i would have a bike with 36 speeds!