You let the cat out of the bag.
More Latin Proverbs:
Our neighbour's crop is always more fruitful and his cattle produce more milk than our own.
Latin
Tis folly to love fetters, though they be of gold.
Latin
You seek for fruit in the garden of Tantalus.
Latin
By speedy, not by slow measures.
Latin
Wealth lightens not the heart and care of man.
Latin