:applause:You get more flies with honey than with vinegar. If you end up having a history of being a difficult customer, the stores can just tell you they don't want your business and not to come back.
I don't doubt that your store manager is a PITA but that little story makes you sound like a spoiled child. They happily offered to replace them for you because it was a mistake and yet you wanted more. Do you make a habit of demanding things at any store that made a mistake?
Unless that store you frequent has a history of screwing you over, I can't find a reason to really respond like that as a customer.
This is what many people who gripe to Amazon have found out first hand after their accounts have been closed for too many concessions on too many orders.
If a manager is willing to work with you and get a replacement for something, then that should be good enough. Demanding more is really just being greedy and a lil whiny you know what.
Even when I complained to Sears a while ago that their employees save for one guy were watching ESPN and no one offered to help me I didn't demand a gift card(even though the manager had offered one). All I wanted was the issue that I experienced fixed and it was as of the last time I stopped in.