Instead of a fish he gives you a scorpion.
More Latin Proverbs:
To condemn by a cutting laugh comes easily to all.Latin
Never expect your friends to do for you that which you can yourself accomplish.
Latin
Be on your guard against a silent dog and still water.
Latin
It is better to say nothing than not enough.
Latin
He goes beyond the bounds.
Latin
Fortune wearies with carrying one and the same man always.
Latin