Good boy don't cry

Alfie has been picking up words and words. He is now able to construct them into meaningful sentences, albeit imperfectly. One thing needs more improvement is his associating English sentences used by his teachers with their true meaning. Apparently context is much more important (or probably easier to comprehend) to a toddler, regardless of the lexicographic meaning, i.e. text attached.

So for example, Alfie's understanding of "good boy don't cry" is "throw it into the trash bin". I notice, whenever we ask him to throw stuff into the bin, he goes "Good boy don't cry". As it turns out, at his school, when anybody (mostly boys) happens to cry, the teacher pulls out tissue paper, wipes his tears, and asks him to throw the tissue paper into the bin. In so doing, she keeps saying (presumably in the attempt to calm down the boy): Good boy don't cry.

Isn't language amazing?