The doctor called me in, made me sit on the dentist's chair. Before starting the procedure she received a phone call. The doctor told the person at the other end of the phone that there was patient waiting in the dentist's chair in front of her. Still the conversation continued and I had to sit in the chair for 20 minutes waiting for the conversation to finish. In my opinion she should have completed the procedure and then talked with whomsoever she liked at leisure. After all the patients time is also valuable to him/her and he/she should not be kept waiting when it can be avoided. Otherwise the practice of giving and taking appointment loses it's meaning.