A Duck Walks Into a Bar

A duck walks into a bar and orders a beer and a ham sandwich.
The bartender looks at him and says, "But you're a duck."
"I see your eyes are working," replies the duck.
"And you talk!" exclaims the bartender.
"I see your ears are working," says the duck, "Now can I have my beer and my sandwich please? I'm working on the building site across the road," explains the duck.
Then the duck drinks his beer, eats his sandwich and leaves. This continues for 2 weeks.
Then one day the circus comes to town.
The ringleader of the circus comes into the bar and the bartender says to him, "You're with the circus aren't you?, I know this duck that would be just brilliant in your circus, he talks, drinks beer and everything!"
"Sounds marvelous," says the ringleader, "get him to give me a call."
So the next day when the duck comes into the bar the bartender says, "Hey Mr. Duck, I reckon I can line you up with a top job, paying really good money!"
"Yeah?" asks the duck. "Sounds great, where is it?"
"At the circus," says the bartender.
"The circus?" the duck enquires.
"That's right," replies the bartender.
"The circus? That place with the big tent? With all the animals? With the big canvas roof with the hole in the middle," asks the duck.
"That's right!" says the bartender.
The duck pauses for a moment with a confused loook on his face and says, "What the heck would they want with a bricklayer?"