I go to Venice often and the food at Ai 4 Feri is good enough for me to think, oh I remember this place, and then to go again. But what I forget is that they hate tourists and do just about anything they can to make you feel unwanted. The most peculiar thing is that in a largely empty restaurant they will seat other diners at your table--these are small tables and its an awkward squeeze. At the same time locals, even single diners, get a full table (they even spread out with newspapers). Then, if you remonstrate, even politely, and point to all the other empty tables, they look at you blankly and say, sorry this is just the way we do it, would you like to leave? Answer: yes.