In the westerns we read growing up, cowboys were always punching each other right in the solar plexus. A scene in the lonelyhearts drama By the Waters of Babylon did that to the Seattle Rep audience last night, leaving people gasping and in tears. It was a lucky punch, though -- most of the time the play telegraphs exactly what's coming next: quips and tedium. If you go, go for Suzanne Bouchard's outstanding performance as......