Garudapurana 1.110.18

1.110.18

yadi vibhavavihīnaḥ pracyuto vāśu daivānna tu khalajanasevāṃ kāṅkṣayennaiva nīcām /
na tṛṇamadanakārye sukṣudhārto 'tti siṃhaḥ pibati rudhiramuṣṇaṃ prāyaśaḥ kuñcarāṇām //

If one is destitute of wealth or suddenly fallen through fate, one should never desire the base service of vile men; / even when afflicted by sharp hunger, a lion does not eat grass for food; he mostly drinks the warm blood of elephants.