While gathered for a party at a coworkers backyard pool Saturday, out-of-shape colleagues at Shuster, Layne & Associates were struck by the coincidence that they had somehow each forgotten to bring bathing apparel to the festivities. Huh, thats funny. Guess we cant swim, said Barbara Fortner, 44, one of the many pale, somewhat overweight employees who remembered to bring alcohol and food to the poolside festivities but, curiously, forgot body-baring swimwear of any kind. Its a shame we cant take a dip. Ah, well. At press time, the employees were reportedly hovering around a table laden with a variety of dips, barbequed pork, and sheet cake. 