It must be an affliction of the young. I can do it. Or am I the only one? Maybe doing it is an affliction of the elders. This could be one of the great mysteries to ponder.....or not. Practice. Force those parts to function.......
Brokfut, my wife can't do it either. That shoots a hole in your theory of the old folks being able to do it, cause she older than just about anyone I know.