Things you should never do in a restaurant

Don’t ask for more salt

People’s palates react differently to seasoning – courtesy of a misspent youth on the smokes, perhaps. If you don’t see salt on the table, taste the food first before you ask for extra. At least then you’ll be able to explain to your waiter (and the chef, should he come blustering out of the kitchen) which elements on the plate require an extra dredge of the white stuff.