Another issue that has been bothering me is - I have another client for whom I did a very small job a few months ago. Every since I know him (almost 8 months) he used to call frequently to ask me professional questions. So for all that time I had spend more than 5 hours on the phone talking to him. I don't like that he gets my free advice and on the other hand no more work for me. How common is that? Do you deal with such a type of clients?