When I went to my bank to get a loan the advisor there said "I see you have a lot of expenditure at a gas station, why is that? You don't grocery shop there, do you?", to which I replied that "no, that's a fault in your system where you register the grocery shop that lies right next to the gas station as the gas station itself". The problem here isn't the fault in their systems or that I had to explain it to her not seem like an economic moron. The problem is that she just went ahead and looked at my transaction logs like it was nothing. I don't want my bank to have such easy access to what I've bought and where. That's not their business.