Mêle-toi de tes affaires

Combien d’argent as-tu dans ta tirelire? — Mêle-toi de tes affaires //
How much money do you have in your piggybank? — Mind your own business!

French Word of the Day from Transparent Language brought me a question “Combien d’argent as-tu dans ta tirelire?”. To which the only correct reply seems to be “none of your business”.
The cat feels the same way.
Pictures related to cats and money @ Shutterstock.