Old joke
The old farmer in Ireland says to his son 'Heres £30, get yourself to the market on Saturday and buy a new cock, the old ones on it's last legs'
So dutifully the lad walks 10 miles into town, of course in the market square the pubs are open, being hot and thirsty he pops into one. The inevitable happens and he spends the money on drink, only £1 remains, OMG he thinks, my Dad will beat me black and blue.
In desperation he goes around the sellers trying in vain to buy a healthy cockerel for £1, no luck. Then he comes across a stall where this cock is on a chain with a hood on it's head. Puzzled he asks the vendor why?, seeing his chance the vendor gives his sales pitch about not wanting to tire it out in the sun, but assures the boy that the cock is insatiable and just what he needs, so the deal is done.
Arriving back at the farm the old farmer looks sceptically at the raggy bird, but decides to give it a chance, they go to the first henhouse, undo the chain and remove the hood. The cock blinks twice in the sunlight then jumps through the henhouse door, feathers fly everywhere and the squawking is tremendous. Five minutes later the cock struts out of the henhouse and dives in the next one, same thing, feathers fly.
They look in the first henhouse and the hens are exhausted, literally shagged out, pleased the farmer says to his son 'lets have a cup of tea while the cock does his business'.
They are just pouring the tea when glancing out of the window they see the cock, eyes closed on his back in the middle of the yard with vultures circling overhead. Thinking he's overdone it and dead they rush to the cock, just as they arrive he opens one eye, and from the corner of his beak says :-
'piss off, they'll be down in a minute'