When a new client leaves your office they should stop worrying about their problem. You should tell them that they need to move on with their lives, to take care of their family and their business, or work, and it is now your job to worry this case. This may be the most therapeutic thing you can do for your clients and the one thing each will appreciate the most, forever. Question your client only at a time and in a place where the answers will remain attorney-client privileged information. If you batted .333 for a baseball career you'd be enshrined at Cooperstown, New York, in the Baseball Hall of Fame.
Clients know home runs, extra base hits, even singles are hard to get.
But if they believe that they had their day in Court, and that you gave them three honorable and legitimate swings, with all your best efforts, they'll be satisfied that you served them well, and you will have, regardless of the ultimate outcome. Don't expect thank you's or kudos from your clients. But savor them when they come. If you give your clients your home phone number, then expect they'll call you at home. Train your staff from the outset that their job is to take in information and write down questions to pass on to you, but that only you provide any information or answer any questions.