Shona

Kuziva gona romumwe hunge unarowo.

To know of someone's horn (filled with medicine) implies that you have got yours, too.

Tsanagudzo

Kuziva uipi hwomumwe zvinoreva kuti newewo uri muipi.

What the Words Say

To know of someone's horn (filled with medicine) implies that you have got yours, too.

What It Means

A person who knows the wicked things someone does usually does the same wrong things himself. Thus, a thief will always be able to detect another thief.