Family Dollar complaint: Employee

I visited Family Dollar on my lunch break to grab a few items. As I was ready to check out in line that was 4 to 5 people. Employee was ringing out a customer that had some pricing issues, which I had no problem with correcting. Cashier refused to adjust the price which was cents. Customer no longer wanted some items Cashier proceed to cancel whole order and start again, because she said there was no way of taking off a few items that whole sale needed to be redone, again no issue. Taking some time but I was ok with that. What I wasn’t ok with before she rang her up again with corrected items she proceeded to take items back to the shelves she did not want. Reminder she had a line full of people. When I asked her to please not do that do it after the line goes down. She was rude and abrupt and said this is how I do it. I was applaud at her behavior as I entered the store I also asked if they carry an item I was specifically looking for and she looked at me like I had 3 heads and said I have no idea what your talking about I was simply asking for wall decals. Never even helped me look and said they have changed the store around I have no idea where anything is. I told her it might be a good idea if she knows and learns where the inventory is. I admit I pretty much went off became extremely agitated angry I was yelling. I could not believe the stupidity of taking tiny little trinkets back to shelves when you have a line full of people. The lady behind me walked out then there were 2 more people. I have patients but not for downright rudeness and stupidity. All she had to do was put them in a basket by her feet and return to shelves after line goes down for checkout…