Never mention a rope in the house of a thief.
More Portuguese Proverbs:
Let not the bottom of your purse or of your mind be seen.Portuguese
Trust not a new friend or an old enemy.
Portuguese
Time and the hour are not to be tied with a rope.
Portuguese
Little chips kindle fire, and big logs sustain it.
Portuguese
The nest made, the bird dead.
Portuguese
If you would grow poor without perceiving it, employ workmen and go to sleep.
Portuguese