Years ago, there was a split among the french chefs. Those who felt the waiter was part of the dining experience, and those who felt they distracted from the meal.
French ninjas are from the second school. The food is the main attraction. The waiter's goal is to provide excellent service while being so unobtrusive as to be effectively invisible.
So these aren't the ones who throw those metal stars?
Baguettes. And only if you forget to tip.