To make a long story short; I was stuck with her.
So I decided to teach her how to fetch.
This is how I did it:
Step 1: Find a toy that cats like
Step 2: Make the bag into a ball
Step 3: Keep this in mind (a lesson in cats)
You'll be able to tell if this is something natural for your damn cat or if it doesn't want to play fetch.
Dont get angry with your kitty if she doesn't want to play fetch. Just try different methods to get her to actually see YOU carry the ball back to the starting point (mostly in your mouth). Whenever she actually picks up the ball and tries to bring it back, Reward her! Simple playful pets work great! Once in a while give her a food treat (POUNCE, tuna, etc). Don't spoil her with rewards though. If you spoil her, then she'll just turn into a snobby cat like your friend's cat.
Rewards should be random after she realises the routine.