શેઈ ઘર રાખે તેવા છે.

śēī ghara rākhē tēvā chē.

Literally: A porcupine is such that it guards the house.
What it means: Said of someone who seems clumsy or harmless but fiercely defends their home and possessions.

Also said as

ગુજરાતી કહેવતસંગ્રહ (Gujarati Kahevat Sangrah) (1921) · read from the scan by machine — the Gujarati itself is unchecked · English is machine-made and nobody has checked it yet

Heard it differently, or know we've got the sense wrong? Tell us — that is exactly the kind of correction this needs.