Lawyers at US gum maker Wrigley were today licking their wounds after the trust behind Hershey Foods pulled the plug on its takeover offer. Wrigley said it remains on the lookout for similar opportunities to expand beyond its core chewing and bubble gum portfolio. As the phoney war to buy Hershey heated up last week, all eyes had been on the mooted joint bid by Swiss giant Nestlé and UK confectionery and soft drinks group Cadbury-Schweppes.