So I’ve been noticing most of the cashiers at big supermarket keep asking customers to use self checkout but little do they know that these numbers are being recorded and once executive of that big supermarket see customers have learnt to use self checkout then they will get rid of cashiers and replace with the self checkout. Same goes for cashiers at Petrol station, today I went to fuel up and had an expired voucher. She gave me a discount and then immediately canceled the transaction and said the voucher is expired. At that time I was thinking she’s trying to save $2 for a trillion dollar company who’s paying her minimum wage. People should use common sense.