How to sprain your ankle on purpose?

I know this isn't the answer that you want but trust me, don't do it. I sprained my ankle over a year ago and now its chronically sprained and I'm frequently in pain. After spraining that one, I recently sprained my other one which didn't heal correctly either and now I can't wear heels (I'm a girl), jump well, or run without a brace. They're stiff when I get up in the morning and just a pain. Also, to get a big bandage, not just an ace, you have to have a really bad sprain most likely involving a torn ligament. Please be smart and don't do this.