Don't you guys think that this thread is a bit extreme already?
I had a bad experience at Sakae sushi at Wheelock too. Cannot blame as it was crowded and under staff but i was very hungry, can eat a cow, so my face black. Manager see already give me 20% off.
Just treat it as an experience and you will be a wiser person.
BTW, do you guys really think that the uncle had studied about hospitality and the finer points of service? How to handle diffcult people? Is he an educated person? It is very true that a waiter should not and cannot yell at a customer even if he is right, but do you think that uncle, who is working at Hans really care? Its Hans for goodness sake! Can you see him working at Prego for instance? If he is working for Mac, do you think he will yell? Mac trains and instruct its staff and have a set of guidelines to follow. Han probably not and don't have the resources.
Really, the level of service accorded varies according to the establishment. You're not gonna get Ritz level of service at hotel 81.