a crafty person prepares multiple escape routes; a wise man keeps options open
A yojijukugo meaning a shrewd person always has backup plans or escape routes. Literally 'a crafty rabbit has three burrows'. Used to describe someone who is very good at avoiding danger by preparing multiple options.
True to the saying 'a crafty rabbit has three burrows,' he always prepares multiple escape routes.
From the Chinese 戦国策, where the saying 狡兎有三窟 explains that a crafty rabbit maintains three burrows to escape danger. It figuratively describes keeping several alternatives or escape routes.