He said ''I don't know how to pretend''.

Okay so the cashier guy at Tekkie Town was highly irritable because we were not fast/quick enough for him, he obviously did not feel like waiting. Unfortunately for him he works in the retail environment. I understand you're tired and you worked all day but it does not warrant being rude. My mother opted to mention it to him, that he did not need to be irritated and he could atleast smile or be civil. Instead he decided he'd tell us ''I don't know how to pretend''! (What are you doing in retail???) After Mom trying to make a very valid point, he told us he does not want to argue with us and we should leave it at that. I was quite confused because I didnt even know we were having an arguement. He was rude, unfriendly and condescending. Extremely disappointing. There after i told my Mom bad service/attitudes is in Tekkie Towns nature, it was sad to say but it's been my experience with them.