Oh Jenny I don't think you should worry about cashiers, they are nearlly always butheads anyway, couldn't be arsed with their jobs, so they take it out on everyone else,
I have one guy in LIDL here in Switzerland, that is so nice, always happy to see you, always talking, thats someone who love his job and works hard at it, no matter what it is!
My mother left the country yesterday, I never talked to her about it, I think she may know I wanted to though, I find it mad to think I told her once before!
She so doesn't wantto deal with it, but I have to