Any minimum wage clerk at McDonalds would be told that they need to treat each customer as if they were the first one of the day...no matter how many times they have to say, 'I'm sorry, we don't carry the mcrib any more' they need to maintain the same professional, friendly attitude, through headaches, pre-shift fights with their spouse, money worries,sick kids. If they can do that through an 8 hour shift, Bruce Willis can check his attitude for a day or so while promoting the film that paid him more than most people will earn in decades. If it's too much effort to behave civilly to a man who is only doing his job - which is to help Bruce earn more money by publicizing his film - then he can retire.