The phone of circus manager was ringing at. The manager picked up the phone. -'This is circus manager .' he said. -'Good morning sir, I look for a job. Can you give me a job in your circus?' the voice at the other and said. -'We can give a job the persons who have extraordinary tricks.' -'What sort?' -'I am a juggler and acrobat.' -'Other? All is that?' -'I can speak as well.' -'Everybody can speak. Is speaking a skill?' -'Of course, sir It is not a skill for human beings. But I am only a dog...'