There is a wonderful, old horror film called The Curse of the Demon with Dana Andrews (?). In the end, the antagonist runs out in front of a speeding train (Which turns into the demon for the bad guy, but remains a train for the onlookers). I don't remember who opens his mouth to scream, (it's been thirty years) but instead of a scream, what we hear is the train whistle. Hope that was somewaht clear. It's not easily explained. ---- To signoff SCREEN-L, e-mail [log in to unmask] and put SIGNOFF SCREEN-L in the message. Problems? Contact [log in to unmask]