Well, I wish you good night
but first shit on the bed
and make it burst.
Sleep soundly,
my love,
your ass in the mouth
you will put.
What would you think if you received a letter/email/message with this good night wish? What if the sender is also in love with you?
A bit incomprehensible, right?
Mozart (caricature of Ariel Cárdenas)
Well, that's how the great Wolfgang Amadeus Mozart spent them. with his bäsle (“cousin”) Maria Anna Thekla Mozart from which her father moved away because he did not see the union as convenient. Her petite appearance, her big nose, her malformed ear and her childhood pockmarks coupled with this peculiar courtship, must have made the genius of Salzburg irresistible. 
Maria Anna Thekla Mozart
There were a total of forty letters to her parents, sister, cousin and friends of hers. They are all very scatological. And the worst thing is that the thing did not stop there. In addition to using these types of expressions regularly, the great musician did not resist composing some canons for his friends with titles like “ Lick my ass ”(Leck mir den Arsch) or “Lick my ass clean ” (Leck mir den Arsch fein recht schön sauber).
Most experts agree that eschatological humor was very common in Central Europe in the 18th century, and that Mozart did nothing more than reflect it in his daily life. In the 1980s, some voices suggested that the Austrian composer suffered from Tourette Syndrome , a disorder characterized by motor and phonic “tics”. These would be something like being in a conversation with another person and that person would introduce “taglines”, often rude, into the dialogue.
I would love to see you this afternoon ASS POOP ASS but I think I have to go to my grandmother's house ASS POOP ASS to get the small suitcase ASS POOP ASS
However, the International Tourette Syndrome Association itself and other professionals have studied the charters and canons, ruling out this possibility.
When the play Amadeus premiered in England , about an alleged deadly rivalry between Mozart and Salieri, Margaret Thatcher took great offense. She could not understand how the director of that piece took the license to put those words in the composer's mouth.
It is inconceivable that a man who wrote such exquisite and elegant music could be so foul-mouthed," she said.
She didn't believe it. Not even when she sent him her letters to check it out for herself. And the truth is that we still have a hard time doing it...