The worst was a fancy local bistro serving my steak and chips with pepper sauce on a board. There was no way I could pour the pepper sauce over the steak without serious risk of run-off. I ended up dipping each mouthful in the jug of pepper sauce before eating it. Same restaurant served veggie meals on the same boards (there didn't seem to be any differentiation). Totally unsatisfactory. I also think chopping boards are not particularly hygienic. Bleurgh. Also, at the kind of prices swanky bistros charge, you would think they could afford proper crockery. The sooner this fad wanes, the better IMO.