Expectations govern our lives. When we go into a shop or other service place, we expect to be treated in a certain manner. If we go to a shop where we have received great service before, we go in with a bounce in our step and a song in our heart (well... maybe not!), with an EXPECTATION of good service. Because we are expecting good service, we receive it, because we are bouncy and smiley.
If we go somewhere we have received bad service, we expect to receive it again - we walk in all frowny, surly, bad tempered. The staff pick up on the mood, and act accordingly.
Our expectations govern our lives. I used to be the kind of person who, when asked "how goes?", I would always have a tale of woe, how rubbish life was, how such-and-such sucked, how bad so-and-so was, etc. When I had a change of heart (thanks to my darling wife :-)), and started answering "life is GREAT!", life *became* much better - because I expected it to.
As the saying goes, "no generalisation is true" - there are some places which just *suck* *cough*BankOfAmerica*cough*, wait staff / shop staff / whatever have bad days, etc.
But just think... if everyone had an expectation that life was good, that they would receive good service, that everything would work out OK... how much better would life be?
This still doesn't explain why there was no hot mustard on my Subway sandwitch yesterday despite me asking three times (token bad_service to reduce the OT-ness of this post ;)), but I won't let that get me down ;)