Because mine seem to have done. I didn't used to use fabric conditioner, never noticed that my clothes were particularly static-y back then. I started using conditioner about ten years ago, again no static. I stopped using it a couple of months ago and now all my clothes are clinging and pinging like billy-oh. Sure it wasn't like that before. Is it because they're all made of plastic now? Or am I some sort of weird electric person? How do you prevent it, without using fabric conditioner?