So I called up Bent Sigurdsen again. He was glad to hear from me, which was almost worth the effort right there. "Hoi, Dirk," he grinned. "We've got to stop meeting like this." He was obviously in his lab, wearing gloves up to his elbows and a green coverall. Fortunately for my digestion, he either hadn't actually started for the day or had taken a break between clients and had changed into unspattered gear. "Echo that," I told him.