"Flying off the handle will do nothing for your cause, no matter how justifiable it may be. This is why terrorism doesn't work. You're not a terrorist, are you? Your waiter is your greatest ally in this situation unless they are the one you are complaining about, obviously. Alienating the waiter will make everything so much harder. You need them on your side."
— "Manuel T. Waiter," the pseudonym of a waiter in Belfast, Ireland, from a column on how to "complain effectively in a restaurant" on CNN's Eatocracy food blog.