If one, two, three say you are an ass, put on a tail.
More Spanish Proverbs:
The cat is friendly, but scratches.Spanish
The turd is proud that the river will carry it.
Spanish
Possession and good right, with lance in hand.
Spanish
Halfway is twelve miles when you have fourteen miles to go.
Spanish
There is no better surgeon than one with many scars.
Spanish
A hidden fire is discovered by its smoke.
Spanish