If a cashier makes a mistake, I always correct it when I catch it because I know it can count against them. When a self-checkout machine makes the occasional mi

If a cashier makes a mistake, I always correct it when I catch it because I know it can count against them. When a self-checkout machine makes the occasional mistake (namely, charging too little for an item) I never correct it because it’s all on the store and who am I to correct them.