I found this fascinating quote today:
So why am I rambling like this? Well, I wanted to set the mood. The place is plain, the location solitary from other culinary gems, and the menu, with some interesting sounding items, not really that much different from others I’ve seen. So that’s why I was FLOORED when the first amuse bouche came to the table.La Xarcu – Unexpected Culinary Treat Hidden Where You Would Least Expect It in Barcelona, Feb 2009
You should read the whole article.