Embarrassing a customer because they irritated you is indefensible.
Kathy is a server at a restaurant who has taken an order with many modifications.
Kathy wants say something while giving the food to the  person that ordered it.
Kathy gives the food and asks if the person needs anything else and to enjoy their food.
Kathy gives the food and refers to the person that ordered it as a very finicky individual.
Kathy will get a good tip.
Kathy will get a low tip.