Tnh hung: Doug Mckenzie - mt lut s Canada, ang n phng ca mnh Vancouver v Uta Schmidt, mt lut s c ang lm vic Berlin. C hai u ang ng trc mt vn php l: khch hng ca h a ra mt cho hng v b rng buc v mt php l bi cho hng d khng mong mun. Khch hng ca h s phi chu bi thng thit hi nu khng thc hin theo cho hng.

Tho lun: Mi lut s s c nhng phng php, cch thc tip cn nh th no tm ra c s php l nhm bo v khch hng ca mnh? Hy gii thch.