Hopefully you've seen National Lampoon's "Christmas Vacation", a holiday comedy classic. Chevy Chase stars as Clark Griswold, whose dream is to have "an old fashioned Griswold Christmas" with his entire family. One Texas family tried to recreate the scene where an inept Clark almost falls off his roof while trying to put up lights . A neighbor thought there really WAS a guy hanging on for dear life, and wait'll you see what he does!