The worst pig eats the best acorn.
More Portuguese Proverbs:
Threads do not break for being fine, but for being gouty and ill-spun.Portuguese
Better a sparrow in the hand than two flying.
Portuguese
No one is content with his lot.
Portuguese
Win a bet of your friend, and drink it on the spot.
Portuguese
Jack will never make a gentleman.
Portuguese
If life gives you a lemon, make a caipirinha out of it.
Portuguese