Com o significado do adjectivo "nasty" a aproximar-se de mau ou de sórdido.

Praia das Milícias - Ponta Delgada - Açores - no primeiro dia do ano!

Não era necessária muita coragem para ir à água nesse dia.

 From Julius Ceasar or from William Shakespeare?

"Beware the leader who bangs the drums of war in order to whip the citizenry into a patriotic fervor, for patriotism is indeed a double-edged sword. It both emboldens the blood, just as it narrows the mind. 

And when the drums of war have reached a fever pitch and the blood boils with hate and the mind has closed, the leader will have no need in seizing the rights of the citizenry. Rather, the citizenry, infused with fear and blinded by patriotism, will offer up all of their rights unto the leader and gladly so.

How do I know? For this is what I have done. And I am Caesar. "

Maybe from William Shakespeare and perhaps lifted from his play, Julius Caesar.