Caesar and the doctor

Caesar had the only person and friend he trusted – he was his doctor. Moreover, if he was ill, he would take medicine only when the doctor personally gave it to him.

Once, when Caesar was not feeling very well, he received an anonymous note: “Be afraid of your closest friend, your doctor. He wants to poison you!” And after a while the doctor came and gave Caesar the medicine. He gave the received note to his friend and, while the doctor was reading, he drank the healing mixture to the last drop.

The friend froze in horror:

“Master, how could you drink what I gave you after what you read?”

Caesar replied: “Better to die than to doubt in your friend!”

Source: Цезарь и лекарь. Историческая притча. (pritchi.ru)