I don't swear at them, but am frequently sarcastic back. There are periods at Morrisons now where there are no human-operated checkouts and all their staff are busy picking Amazon orders. (They have also had to lock down the booze aisle due to rising levels of theft.) I have (on a couple of occasions) been known to abandon my weekly shop (>£60) when nobody turned up to approve my purchase of beer after 10 minutes wait. (Went up the road and shopped at Aldi.) 3:O|>