Grocery store pet peeve

What is your biggest grocery store pet peeve?

For my particular store, I hate it when they do the following things:

They encourage you to do the online digital coupons and then sometimes they don't get applied at checkout.

They don't always give you the sale prices...so if it's listed as Buy 1 Get 1 Free, you don't always get it for free at checkout.

Their Managers don't open the customer service department until 2 hours after the store's opening in the morning! So if you go and there are errors, you can't get your money back until later.

It's getting so expensive. I now go to the expensive one when they have buy 2 pay 1 and save a load. For the rest I go to cheaper stores and now we go to Germany. That is fantastic. They don't have buy 2 pay 1, but everything is just so cheap. You easily save 60 euro on 3 bags.

When people are standing too close to what I need to get, or when I am looking at something and someone walks directly in front of me, and stops.