I took two packets of sugar substitute from the basket near the coffee maker and flicked my wrist to loosen up the granules, then ripped open the paper packets and poured them into my coffee cup."What kind of insulin pump is that? My grandson has an insulin pump."His voice was warm and kind, and he stirred his own coffee absently, looking curiously at the pump in my pocket."An Animas Ping." I smiled at him. "How long has your grandson had diabetes?""A little over a year. I like your pump. It looks small. What kind is it, again?""Animas. What does your son have?""Medtronic." He looked at my pump again. "It just looks so much bigger than that one.""I think most of the tubed pumps are generally the same size, give or take. Mine is about the same size as your grandson's. How is he doing with it?"The grandfather smiled. "He does great. He's a good kid. He was on the pump soon after being diagnosed. His grandmother and I are here at this conference to learn all we can and report back, since his parents couldn't come because they're home with him."He paused. "Are you sure your pump isn't smaller? It looks a lot smaller.""I'm almost positive."We both sipped our coffees."How old is your grandson, sir?"The smile on his face flew like a bird from his mouth to his eyes, though it was a bit sadder when it landed there."He's two. Two and a half."My insulin pump was the size of a whisper, sitting on the hip of a grown woman, compared to being clipped to the pajamas of a two and a half year old boy.My eyes filled with tears that I ignored as I sipped my coffee as a distraction. "The pumps are the same size. It's the size of the person wearing it that varies, I think.""That must be it," he said. "But still. Everything just looks so big on him."