Heather Mills has gone out on a limb in talking about her upcoming stint on Dancing With the Stars. Discussing whether her prosthetic leg might come off while she's competing, Mills – whose left leg was amputated below the knee after a 1993 motorcycle accident – tells TV's Extra, "I'm quite happy to be thrown around, and hopefully my leg will stay on." But don't worry, she says: "It's very unlikely my leg is going to fly off, although it would be quite funny. I'll have a strap on which I wouldn't normally in every day life." With a laugh,...