豚を盗んで骨を施す（ぶたをぬすんでほねをほどこす）

Japanese vocabulary

Meaning: you cannot excuse a bad deed with a petty act of benevolence; steal a pig and give the feet for alms

See it used in real works

• Example sentences from Japanese novels & web fiction (Massif)
• Hear “豚を盗んで骨を施す” pronounced in real videos (YouGlish)