Babies DO rock. It was the 3-ish toddler phase when I began to first question the wisdom of future birthdays. Something about waking up in the morning, greeting a smiling 3-year-old, and then not being able to stop moving in his wake, hoping to prevent spills, crashes, falls, climbing disasters, breaking glass, liquids pulled off counters, etc., until he fell unconscious again, which never happened nearly soon enough.