[Warning: Potentially Triggering Content] Derek Hough is opening up about the SEVERE bullying he endured as a child. The Dancing with the Stars judge took to Instagram on Monday to share a lengthy message about bullying, getting brutally honest about the "torture" he once suffered: "For those of you who don't know this about me, I was severely bullied as a kid myself. I experienced some pretty extreme stuff." You're not ready for what comes next... He continued: "Being hung by a tree by my feet, being spat on, beaten up, a gun held to my head, even hogtied in a field for hours.