For those of you who weren't paying attention or have comprehension problems, what the lady said was RUNNING a business, not selling it. I have been both a manager and an owner of successful businesses, so I know what she meant. For those who have not been, further elaboration is an exercise in futility.
Huh! One can own a business without RUNNING it. One can sell a business without RUNNING it. She never once said anything about running a business. She mentioned owning and selling, but never RUNNING.