I first came across this image years ago in our pediatrician’s office. It made everyone who saw it laugh. The young boy—less than a year old, probably—has very limited world experience. But somethings he knows well—food comes out of those! The boy recognized the imagery, but with his limited background knowledge of art and contextual experience, his expectations of milk were quickly dashed (to the complete amusement of his mother).

While we enjoy the boy’s predicament, it is good to keep in mind that the products we create can put our users at a disadvantage. The product’s audience can similarly have limited background knowledge, misinterpret the context, and be left with unexpected consequences. And a loving mother might not be there to console them…