Sometimes food items/ingredients are put into a dish without your knowledge and it's something you don't like or are perhaps allergic to. You have 2 choices: You can either pick the ingredient out or you can make a big fuss and have the waiter take it away and do it all over again. I think option one is the kinder thing to do and safer as well. Some cooks don't like their food being criticized and may put a surprise in your food just for spite.
