Being a dancer I have attended many social dances at ballrooms across the country. With little variation, the scene is usually the same. One person walks up and asks another to dance. Mostly this means the woman is asked by the man, but I have also had many women ask me to dance. At that point the one being asked to dance can make a choice to say yes or no. Almost always do I see the recipient happily accept the invitation. However, there may be several reasons why a person would say no to a dance in a dance hall: they are waiting for a friend or a drink; they are sitting one out to cool down and give their feet a break; they are getting ready to leave, dislike the song, or they just don't want to dance with you specifically.
Imagine that you are asked to dance and for some reason you decide to say no. Then the person who asked you says, "Tough, you're going to dance anyway," and drags you onto the dance floor. How would you feel about dancing with this person? You would most likely be very uncomfortable, not enjoying the dance, wanting to be somewhere else, attending to somewhere other than your "partner," wishing the song would be over. An awkward situation indeed. Yet this is how people often enter into conversations with others. Even I am guilty of bolting into a room, and immediately asking my wife a question just to be quieted by the realization that she is on the phone. She wasn't available to dance with me at that moment; it was self-centered of me to think that she was ready and willing at my convenience to participate in my conversation. In short, I did not ask her to dance! If I had been more considerate, I would have entered the room, checked to see where she was and what she was doing and asked, "Do you have a second to answer a question?" She could say, "Sure," or she could say, "No, I'm in the middle of composing a note to my brother." Then I wait, because I know that unless I have her full attention I'm going to have less of a chance of having an effective conversation with her.