An evil viper once bit a Cappadocian, but it died itself, having tasted the venomous blood.

A viper stung a Cappadocian's hide; And, poison'd by his blood, that instant died. | Translated by J. H. Merivale, Collections from the Greek Anthology; and from the Pastoral, Elegiac, and Dramatic Poets of Greece (London: John Murray, 1813) p. 457 | A deadly viper, which, perchance, a Cappadocian bit, Tasting that blood, than poison worse, died instantly of it. | Translated by Major Robert Guthrie MacGregor, Greek Anthology, with Notes Critical and Explanatory (London: Nissen & Parker, 1864) p. 124