You don't earn loyalty in a day. You earn loyalty day-by-day.
Loyalty is earned with friendliness, responsiveness, ease of doing business, fair value, and the good feeling customers get when they call you, visit you, or interact with you.
Great people have great values and great ethics.
When you love life, life will love you back.
It seems to me that it's actually harder to invent excuses than it is to get a sale.
If all it takes is an angry stranger to ruin your day, what are you going to do if something really serious happens? Why give someone else control of your life like that?