How does the author use foreshadowing in All Things Bright and Beautiful?

One note of interest in the Mr. Crump story is the massive hat that Herriot wears while assisting in the birth of the calf. In addidng this detail, Herriot illustrates just how intoxicated he was. It is also interesting how Herriot uses references to church-like behavior during his description of the birthing. Herriot says the Bamfords move about like they were in church. He also notes the "cathedral" silence in which the birthing is carried out. These references almost seem to be a foreshadowing of Herriot learning these patrons are strict Methodists, opposed to alcohol and drunk veterinarians.