સારા જાણી નાતવ્યાં, ગધેડાની સાથે ખેતર્યાં, ને ભાણે બેસી મુત્યાં.

sārā jāṇī nātavyāṁ, gadhēḍānī sāthē khētaryāṁ, nē bhāṇē bēsī mutyāṁ.

Literally: Thinking them good, we invited them to the caste feast, but they cheated us with a donkey and urinated while sitting at the dinner plate.
What it means: Said of ungrateful, vulgar people who repay kindness and hospitality with extreme disrespect and betrayal.

Also said as

ગુજરાતી કહેવતસંગ્રહ (Gujarati Kahevat Sangrah) (1923) · 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.