Secrecy Protects the Ruler and His Affairs

During Japan's Sengoku period, Oda Nobunaga sent an assassin to kill Uesugi Kenshin. The ninja hid in a cesspit for three days and nights, waiting for the moment Kenshin would sit on the toilet, then suddenly emerge from the fecal water to stab him. Why? Or maybe he was building a progress bar? "Congratulations — you've been holding it in the cesspit for 24 hours now. 48 hours remain until Uesugi Kenshin takes a dump." "Congratulations — you've been there 48 hours now. 24 hours left." [...] You think this is a video game? The truth is, you could never know when Kenshin would use the bathroom — or whether it was a large or small one.

Understood? Who understands you? If that ninja had paused mid-mission to understand himself before completing the task, he would have assumed he was already exposed.