My Ds(5) had a really nasty fright after accidentally seeing a hoax video on the computer. We were watching michael jackson music videos together, as Ds absolutely loves singing and dancing along, when I left him to get the front door. The next thing I heard was an almighty petrified scream followed by sobs and tears of complete distress. Since then Ds is afraid to be alone at all and panics if anything makes him jump in the slightest. My Dd (2) is picking up on his jumpiness and I don't know what to do to help them get over this 'fear'. I know I shouldn't have left him alone on the computer and I never usually do, but on this one occasion I litterally turned my back for 2 seconds and that was all it took. Any ideas of how to help?