Subscribers to Britney Spears's official Twitter feed (yep—Brit's Twitterin'!) have grown accustomed to updates like "I love Japan! I think all the tiny cars are so cute!"

If you were unfortunate enough to catch the premiere of NBC's ludicrous superhero snoozefest Heroes, you might have enjoyed the image above where a girl jams her hand into a running disposal, apparently shredding her flesh and digits. Despite the carnage, she's ultimately unharmed, because she has the regenerative…