'I'll just ring my mobile and sort it out.'
'O.K,' whines checkout lady.
'Grr,' You quietly grr.
'The card just got declined,' she berates her (I'm guessing) husband.
Your ice-creams melting and you really need to get going.
'I'm in Safeway and my cards just been declined,' she yells down her mobile. She's angry and you don't want to stir her up further.
You can't wait so you make a beeline to the next available checkout. Yep. That's right. The dad with 5000 items beats you to it.