My brother used to tell this story ...
He used to go long journey's to the centre of Australia for his job. He drove thousands and thousands of kilometres in his Holden panel van and decided he'd buy a parrot for company. He found a parrot, fully grown, sitting in an outback general store, did a deal with the store owner and off they drove, man and bird.
BUT ... unbeknowns to my bro the bird had a foul mouth, a bad attitude with the worst vocabulary known to man. Every second word was an expletive.
My Bro tried to change the bird's language by quitting swearing himself, speaking politely, playing gentle music, nothing worked. When he chastised the bird the performance worsened.
Back at home he became fed up with the incessant foul language and late one night, after too many Coopers ale's, he put the parrot in the freezer. He could hear the bird swearing and squawking then nothing, dead silence.
My Bro thought he'd gone too far and raced to the freezer. As he raised the lid of the freezer the parrot stepped out onto my Bro's arm and said ...
"I'm sorry that I have offended you with my foul language I ask your forgiveness and from this day forward I will endeavor cease and desist."
Flabbergasted, before my Bro could respond the parrot continued " ... and may I ask what the chicken did?"