Have used this approach years ago when I worked retail and it works really well (as an aside working retail for at least a year will give you a sound grasp of customer service and introduce you to the 10&#x2F;80&#x2F;10 split, 10% are lovely to deal with, 80% are somewhere in between but fine and 10% are jerks).<p>I also learnt not to take it personally, some times people are having a really bad day for reasons you can&#x27;t see and a little bit of empathy goes a long way.