Well we've got big supermarket wars here in the UK. The likes of Tesco, Asda, Morrisons and Sainsburys are all doing their bit to keep customers, and it's unusual that a JW would work in one of these as they would be expected to work on meeting nights and Sundays.
I suspect this JW is a right pain in the neck if she won't do her fair share and insists on working shifts where there are the least amount of customers. The boss is just waiting for an excuse.
Kate xx