It is like throwing bur on a gourd.
More Hungarian Proverbs:
Make no headache of what is not your business.Hungarian
The exception confirms the rule.
Hungarian
Let the cobbler Paul grumble, he should only make good sandals.
Hungarian
Even the mother cannot understand the words of a dumb child.
Hungarian
A dog that barks does not bite.
Hungarian
Where there is no bridge the smallest plank is of great value.
Hungarian