Jews.

Wrights view on the Jewish shopkeeper seems to be nothing more then him taking out whatever angst and frustration on the shopkeeper as was taken out on him. Wright seems to search for differences in others to pick apart, seeing as that is what others have done to him. Wright seems to notice the shopkeeper being far more wealthy then the people he is used to being around, to Wright, this gives him the perfect reason to torment and taugnt the owner. The fact that Wright has gone through this kind of torment his entire life is almost a forshadow that he is going to take it out in some way, somewhere, and this just seems to be the start of it.