I'm feeling down. Can you cheer me up?
One day, a man is so sick and tired of the usual routine that he decides to finally take action and seek a psychologist.

He goes to the psychologist and confesses for the first time the feelings which haunt his daily life: how he perceives the world is harsh and cruel, how he feels lonely and useless, how he relies on the perception of himself by others to grant him happiness, how he doesn't know that he'll ever be satisfied with anything he does, how he doesn't know that he'll ever find contentment in anything.

The doctor sits for a moment, nodding silently. And then he speaks:

Well, there are a number of medications which I can offer you.. and he trails off, looking thoughtfully over the man's shoulder, taking a moment to scratch his chin. But you know, sometimes these things.. we can cure them with simple remedies. A laugh, a good time. You know, there's a circus act in town! Maybe you should go see it! There's a great clown there, Pagliacci, who has brought laughter to the lives of many, many people.

The man replies: But doctor.. I am Pagliacci!