A man working in a job centre hears a voice saying "Gis a job". he looks around and can't see anyone. So he puts it down to his imagination. Then he hears it again, "OY, gis a job will ya!". He looks around hime confused. "Down here" says the voice. The man looks down and sees a duck there. "Gis a job" he says.
The man is dumbfounded for a second at seeing a talking duck. When he regains the power of speech he says "wait there a second" and goes into his office. The duck waits.
The man comes out and says "I have great news for you - I have just been on the phone to Billy Smart's circus. When they heard they was a talking duck here, they offered you a job straight away as an act in their show".