Statistics suggest that when customers complain, business owners and managers ought to get excited about it. The complaining customer represents a huge opportunity for more business.

Quote by Zig Ziglar

Nashville: Oliver Nelson.
Ziglar Zig; Ziglar Tom (2012). (2001).

Hilary Hinton "Zig" Ziglar (November 6 1926 – November 28 2012) was an American author salesman and motivational speaker.