is that suppose to be English?

You are doing a service business, in which you providing services which involves people themselves not goods/items. It is a practices of a services crew to throw away emotions and personal problem during working/servicing customer. That is a basic rule in a hospitality field of work.

You sir, need to gave pleasant presentation of your company, crew and service at all time during working period. When the customer is not happy with you, its not their fault, its yours. get it?

And if you think opening and operating cyber cafe got nothing to do with hospitality industry? you are dead wrong, its a cafe in the first place right? so whatever happen, your customer always win in Hospitality field.