This is kinda dumb. It's the other way around, to protect the cashier from the filthy plebs. Can't count how many times I've seen people sneeze in the face of the cashier. Cashiers are generally treated like shit (especially by the older generation), literally slaves to them, all humanity stripped away. Used to work as a cashier, and the amount of shit you have to take is unfathomable. I always treat cashiers kindly because I know how shit of a job it is. Sometimes I'll joke that replacing enlistment with 6 months in retail would create a more polite society.
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