Jackie, my sister, had been pestering her husband, a carpenter, for more than a decade to build a screen door for the kitchen. One day, to her delight, he built and <br>installed one in less than two hours. It was both practical and pretty.<br>She glanced towards the front door and wistfully remarked that a screen door would look good there, as well.<br>\'\'Are you kidding?\'\' he gasped. \'\'You can\'t just whip these things up, you know. It takes ten years to build a door like this.\'\'