customers are the livewire of any business,and we need them to keep being in business.But most times the demands from the customers are not what a business can handle,a situation a customers would want you to give some outreagous discount that might affect your business,you just have to let them go,that would be after explaining things to them.When it comes to business and then dealing with customers seriously is not something to be taken as a joke most especially high ranking or demanding customers I will try much as possible to see I meet up to their demand because that is the only way to retain their presence.