Put your god damn glasses on

(Cust paying with card)

EM: ok if you just want to put your PIN number in...
(Cust presses buttons, terminal says its incorrect)
Cust: what's it doing?
EM: it's saying the incorrect pin was entered.
Cust: press E N T
EM: if you press the green enter button and try again, the numbers are quite sensitive so if you make sure that there are only four stars before you press enter
(Cust puts in number, she's pressing one of them too hard so it goes through twice, without looking she just presses enter)
Cust: what's it doing? I haven't got my glasses on so I can't see
EM: I think it's timed out, it's very particular that your pin is entered promptly
Cust: shall I take out my card?
EM: yeah, we can try again
(EM boots it up, cust puts number in, many keys being pressed twice...)
EM: oh, you've got about seven stars there!
(Cust presses enter)
Cust: oh have I? It's saying last try
EM: yes if you do it carefully and then check that there are only four stars before you press the green button
(Cust does as she's asked, finally. The transaction goes through...)