Why are you complaining? It's your own fault... we don't need to hear your problems.
As for wireless... they already did that, it's called "Wavebird", go to eBay and buy one.
If your sister pulls out your memory card, knock her out, kick her out of your room, I don't care, just don't come here and complain about your own little problems.
Astoundingly, you can take your memory card and controllers out after use and you can also buy GameCube controller extensions for <$5...