The Story of a UFO in the Woods

My dad and his brother saw UFOs in the woods. The next night, they start seeing lights in the backyard of their cross town home. They come face to face with a 3 to 4 foot tall entity that had a triangle on its chest. My dad never took medication for Crohn's disease again. He still hunts bugs but now he can't kill them without killing himself. His perspective has been changed forever.