You can line up DOMINOS in a beautiful pattern and spend hours doing it … but all you have to do to knock them all down is PUSH over the first one (the lead domino) and the rest will follow. The same is true about a business. You can spend years and years building up a great business with a super reputation and one employee can cause a customer to never do business with you again. One employee can PUSH a customer the wrong way and run them off … in other words … they knocked down one DOMINO. But could that one upset customer cause other customers to follow them?