How to Deal With Annoying Client?

anybody got tips? give me then. before i hurt some client while i am fasting… =P the whole story? hmm. let save it for another day. all i need is some tips how to deal with them… well, i am glad if you can give me some advice how to make them shut up… =) man, this client really had what some people would call “i-know-everything” kind of talk. yeah yeah yeah…