idiot-proof
バカよけ
Defensive design
Hanlon's razor
Inherent safety
Poka-yoke
Unintended consequences
foolproof
errorproof
/suto3/google.icon
idiot-proof
image
idiot-proof
define
idiot-proof
wikipedia
idiot-proof
weblio
idiot-proof
kotobank
idiot-proof
jisho
idiot-proof