A duck waddles into a Bar, sits down on a stool by the Bar, orders a pint of Guinness and a Ham sandwich.
It's a quiet lunchtime, only a few customers in the Pub so the barman engages the Duck in conversation:
'Dont get many Ducks in here'
'Well I was thirsty, it is lunchtime so I thought - why not?'
'Pity about the weather, all this damned rain....'
'Personally, I don't mind the rain, guess I'm used to water'
The sandwich arrives, the Duck eats it, finishes his pint, bids the barman farewell & leaves.
A couple of weeks later, the Duck happens to be driving by, it's lunchtime again so pulls into thr Pub car-park and waddles into the Bar.
He orders a pint of Guinness and a Cheese sandwich.
It's another quiet day and the barman, recognising the Duck, greets him & asks how he is.
'Oh and by the way, last week we had a Circus in the village, the Circus boss used to drink here & I told him all about you. He said that he could use a talking Duck any time in the Circus'
The Duck puts down his pint & looks puzzled.
'Why would a Circus need a Plumber?'