The day is sure to come when the cow will want her tail.
More Danish Proverbs:
If a bird knew how poor he was it wouldn't sing so beautifully.Danish
The miller is never so drunk that he forgets to take his dues.
Danish
The aged in council--the young in action.
Danish
Though you teach a wolf the paternoster, he will say "Lamb! Lamb!"
Danish
Gifts make friendship lasting.
Danish
If a man has folly in his sleeve, it will be sure to peep out.
Danish