a storm in a teacup, making a mountain out of a molehill
Não faça uma tempestade em copo d'água, ela só fez um comentário inocente.
Don't make a mountain out of a molehill, she only made an innocent comment.
The French form une tempête dans un verre d'eau appears in Montesquieu, who reportedly used it to describe political unrest in the Republic of San Marino. The same image exists in English as 'a storm in a teacup' from the early 19th century.
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