thanks very much for your comment.
Among our customers, there is a VIP customer, who has cooperated with us for almost 10 years. But to be honest, i do think it is a big mistake to work with him. I know i shouldn't have this thinking, but according to my knowledge, i believe, if a customer not only makes noise, but also makes trouble in business to make it harder to achieve, i guess we need to reduce business with him day by day...but, maybe i am wrong. :-)
right now, normally i communicate with him mainly by email, because this way can more clearly express what i want to say, and it can make me avoid to hear his noise, :-) and when he calls, i just say yes yes and yes, :-) do you think it is a effective communicating way?
but i do like your two stories, and i will do once some day for sure, to let him convince our quality.
thanks a lot!