भागवत - अप्रयोजनम्

खगा वीतफलं वृक्षं भुक्त्वा चातिथयो गृहं ।
दग्धं मृगस्तथारण्यं जारो भुक्त्वा रतां स्त्रियम् ॥

- भागवत

khagA vItaphalaM vRukSham bhuktvA cha atithayo gRuham ।
dagdham mRugaH tathA araNyam jAro bhuktvA ratAm striyam ॥

- bhAgavata

No one sticks around once a thing is no longer useful. Birds abandon a tree that has emptied the fruits. Guests leave the hosts when he has nothing to offer. A herd of deer will just move on and abandon a forest that was burnt down. A philander leaves a woman after satiating his urges.

- Bhagavata