Well, we have the "best meal of the year" list, so might as well start a "most disappointing meal of the year" thread. For me it was "The Square" in London. I was really looking forward to that meal but felt very let down by the service and miniscule portion sizes, even by tasting menu standards. I will have to say I received an incredibly generous offer from the restaurant manager when I wrote about my experience, so they are obviously paying attention.

Yours?