Imagine, you are eating food in a restaurant with someone/some people and that time your cellphone rings and you start talking. Or imagine, in a face to face conversation with some people, you called someone else and started talking to him/her over phone. What would be the reaction of others? I guess, you have got it. The entire mode could be spoiled or definitely it will interrupt/annoy people while someone gives priority to some other person while he/she is with others. It is really irritating. But, if you hear that just for handing over the cellphone at the restaurant’s reception while you eat, you will get 5% discount, what will you do?