Customer Rudeness
Recently we had a customer * who amongst other things told us that because they are the boss of their company that they will only deal with and give us jobs if they can deal with the boss of our company every time they called as that is how they work - that's after they put the phone down twice on members of our office team who were helping them organise and liaise with jobs they wanted carried out.
*That customer is now an ex-customer at our decision.