A duck walks into a bar, says "a pint of bitter please".
The barman says "crikey, a talking duck".
The duck say, "yeah, Ok, just give me my drink."
The duck retires to a table and sits with his beer reading the paper. The barman says "crikey, you can read as well."
"What of it", says the duck.
"Well it's a bit unusual", says the bar man. "What are you doing here anyway?"
"I work at the building site across the road. I'm a plasterer.
"Crikey", says the barman.
The next night, the circus is in town. After the show, the ringmaster goes to the pub for a drink. The barman says to him, "I think I've found an amazing new act for you. It's a duck that can talk and read". The ring master expresses enthusiasm and asks the barman to send the duck round when he's in the pub next.
The night after, the duck comes back to the pub. The barman says "I've got an amazing new job for you. You can join the circus!"
The duck sits thoughtfully for a minute, then he says "the circus, that's a show in a tent isn't it?"
"Yes"
"Where the people live in caravans"
"yes"
"And the animals live in cages"
"Yes"
"and the tent is enormous but with canvas walls and a canvas roof"
"Yes"
"So why the fuck would they need a plasterer?"