ὁ λαγὼς τὸν περὶ τῶν κρεῶν τρέχει → save one's bacon, save one's neck, save one's skin
campăgus: i, m.,I a kind of boot worn by military officers (late Lat.), Treb Gall. 16; Capitol. Max. jun. c. 2; Edict. Diocl. p. 24.