I really don't wish to be unkind, but I doubt you will learn something when you are trying so very hard not to.
If the guard, not greeter, didn't care about my finances, then why would he remark on them? Why would the clerk be "distracted" by the large number of books I bought? 1. It is a BOOKSTORE. 2. If I'm the one buying the largest number of books, then the likelihood is even HIGHER that I would be in their rewards program. I learned the term "passive racist" very recently. To my non-hyper-vigilant mind, you fit the description. Shalom and Salaam.