Why Are Your Cashiers So Rude, Belittling, Demeaning And Condescending?

I was shopping at your Vista Village location, in Boise Idaho, today, and the cashier, Patty, told me I can't take her divider stick, because it smashes peoples' purchases. I told her, I was only trying to make room on the conveyor belt for the items of the customers behind me, and she proceeded to lecture me like a child! I absolutely DO NOT respond well to condescension, I am in my 40's, ok, there is no reason for this unacceptable behavior. I told her, "ok, ok, it's fine, can we just move on with our lives, please?". She then had the nerve to get angry at me and would barely speak another word to me, but was VERY cordial with the people behind and in front of me.This has been an ongoing problem between me and the cashiers, and I am sick of it. If I don't put a divider stick down, the cashiers get angry, because they can't differentiate one customer's items from another. So, even though, it's supposed to be the customer who is being catered to, I can't seem to make any of your cantankerous cashiers happy! You need to either update your conveyor belt configuration, or get more divider sticks! Why would you create a situation that's obviously going to be problematic? How about being rational and logical, instead and solving the problem? And how about you mention to your employees that customer service should NEVER, EVER include demeaning, belittling and lecturing the customers, who, by the way, are your bread and butter?! I cannot even believe you have hired people who have to be told that! The next time I go in there, I will expect Patty's attitude to be less hideous than her birthmarked face. Thanks.