The Stupid Customer approaches the customer service desk full of rage.
'Excuse me! Can I speak to your manager!'
'What is the problem sir!?'
'This does not concern you, let me speak to your manager!'
The employee calls over the manager to help with the Stupid Customers problem.
'What seems to be the problem?'
'I am outraged that I have missed my bus home, thanks to YOU lot!'
'How did this happen sir?'
'I wanted this wine because it was special offer, however when I went to the check out, the wine wouldn't go through as the deal. Now I have missed my bus home... I am absolutely livid!'