Today I went to buy a box of screws and a box of nuts. They only had a half box of nuts (50), so I received discounted price for it. When I got home I noticed that I had 2 boxes of screws (100 each)... Since I needed the nuts and I also didn't pay for one of the boxes (more expensive) I went back and I tried to switch the boxes. The cashier didn't understand the process, then the manager stepped in with a very aggressive attitude. He was very impatient with me. He said to me: ""If you didn't pay for the box, why did you take it?"" (raising the voice), I said: ""I didn't notice it was the wrong one until I got home"". He charged me double the price that I'd already paid for the half-box of nuts and started insulting me while walking to his office.
I was a frequent client of that Ace, and as far as I know, he is the owner. I will not buy anymore in that location and I recommend not buying from him as a signal of repudiation for his intolerance.