cosí fan tutte - e tutti --- everybody does it
Especially when being visibly a tourist you will find this attitude among natives in customer service. They will have all the time to chat with each other, capable of leaving you waiting for... just as long as the conversation happens to take, no matter what.
And if you should have the impertinent habit of interrupting and claiming to be served, you might even achieve it, but this will be rewarded with an arrogant "tssseh" and a demonstrative look away.


