"Your mom bought them for me," I retorted without breaking my stride. "Tell her I said thanks, the next time you stop at home to breast-feed and pick up your allowance." Childish, I know. But virtual or not, this was still high school--the more childish an insult, the more effective it was. My jab elicited laughter from a few of his friends and the other students standing nearby. Todd13 scowled and his face actually turned red--a sign that he hadn't bothered to turn off his account's real-time emotion feature, which made your avatar mirror your facial expressions and body language. He was about to reply, but I muted him first, so I didn't hear what he said."