I bring this up because several times now I've read on different waiter blogs that the worst sin a customer can committ is to snap their fingers at their waiter.
But I've never ever seen anyone snap their fingers at their waiter, nor can I picture myself doing it. It's just so...lame. Plus restaurants are noisy places. The waiter would never be able to hear the sound of my fingers snapping.
Has anyone on these boards done this or seen someone do it? Is it just an urban legend?