For Dining Only anti-laptop sign at restaurant

Just snapped this "FOR DINING ONLY" sign at an Austin cafeteria -- it includes a laptop in a circle with a line through it. I get the point -- laptop users squat on tables, reducing the turnover. But I can sit and read a newspaper or a book at a table for hours, too -- why not have a "NO READING -- FOR DINING ONLY" sign? And how about those great, social meals where you chat with your friends for hours? "NO READING, LAPTOPS OR TALKING: FOR DINING ONLY!" Link (via Wonderland)