Rude

EM: can I just take your postcode please
Cust: (with venom) can't you just put it through the till?
EM: sure

(Gets to the payment part)

EM: if you just pop your card in, it will be ready for you in a second

(Cust puts pin in but makes a mistake. At the bottom of the screen it says 'CNL=NO ENT=OK')

Cust: (stabbing at the 'clear' button) a number hasn't gone in and your clear button isn't working
EM: if you press cancel, it takes it back one number at a time
Cust: well, thank. you.

(Receipt prints out)

EM: if you keep hold of these as I haven't been able to create an electronic receipt for you...
Cust: (again, with venom) just like a normal shop. Thanks.
EM: ok.