懂中文 Dong Chinese

开门揖盗

kāi​mén​yī​dào

leaving the door open invites the thief ; to invite disaster by giving evildoers a free hand

Definitions

开门揖盗 (開門揖盜) 

kāi​mén​yī​dào

leaving the door open invites the thief (idiom); to invite disaster by giving evildoers a free hand

Sources