Derek Hough and Hayley Erbert are grateful for daily life immediately after getting into a scary motor vehicle incident forward of the vacations. The pair shared a movie documenting the aftermath of the incident previously in the month that led to paramedics being known as and Erbert getting stitches in her facial area. “On December 12, Derek and I obtained into a really frightening vehicle accident in the mountains,” they wrote in a joint statement on Instagram on Friday. “Our accident involved a steep hill, icy roads, a tree, and worst of all, the panic that we would slide off the mountain.” In the online video, Erbert is found on…