We are immersed these days in the erroneous idea that only randomized placebo-controlled studies (RCTs) constitute scientific data. We will discuss the origins of the over-reliance on RCTs in a future column. For now, we shall simply assume that many of our readers understand that a well-documented case study can provide information relevant to many. And so, we would like to tell you about a Calgary-based child who we refer to as ‘Andrew’.