It's all gravy when everything's great, but if there comes a point where there's a problem, as with any kind of relationship you need to fix it. There's always going to be something, and it could be the smallest detail you'd never have expected or it could be something substantial, but it's how you deal with things.
I was endorsed by many corporations to work with their people. Since I had several hundred successful case histories, I realized that it was really valuable and everybody should have access to the information, so I started teaching seminars to groups of people.