Heh. From
http://metro.co.uk/2016/07/23/this-m...sive-6024502/:
Mr Wahid, 51, who opened the restaurant in December but has been in the industry for over 30 years, said: ‘When he came to pay I gave him the card machine and he asked to put in the amount himself but it didn’t go through.
‘I then had to phone the bank for him and I answered all of the questions and they then gave me the confirmation code.
Is that a common occurrence? Having the customer enter the amount, I mean. I would think it'd be a recipe for getting shortchanged (especially if one uses a gift card, which would be impossible to trace back to the customer).