It's even better if you have two ipads or can steal one of your sisters ipods - then you can have two (or more) Dodos going at once.
And if your twin sister steals the ipad?
First you say: "Audrey can Ashlea please have the ipad?"
When she doesn't respond you remind her by saying: "Audrey - she asked nicely - give it to her please!"
If all else fails you start making plans to get it back and say what you really think: "Something is going to happen to Audrey..."