Mbh 12.82.2a

"'"The sage said, 'Ascertaining the merits and faults of thy servants, as also the dangers thou incurrest at their hands, I have come to thee, impelled by my devotion, for representing everything to thee. The teachers (of mankind) have of old declared what the curses are, O king, of those that serve others. The lot of those that serve the king is very painful and wretched. He who has any connection with kings is to have connection with snakes of virulent poison. Kings have many friends as also many enemies. They that serve kings have to fear all of them. Every moment, again, they have fear from the king himself, O monarch. A person serving the king cannot (with impunity) be guilty of heedlessness in doing the king's work. Indeed, a servant who desires to win prosperity should never display heedlessness in the discharge of his duties. His heedlessness may move the king to wrath, and such wrath may bring down destruction (on the servant). Carefully learning how to behave himself, one should sit in the presence of the king as he should in the presence of a blazing fire. Prepared to lay down life itself at every moment, one should serve the king attentively, for the king is all-powerful and master of the lives and the wealth of all, and therefore, like unto a snake of virulent poison. He should always fear to indulge in evil speeches before the king, or to sit cheerlessly or in irreverent postures, or to wait in attitudes of disrespect or to walk disdainfully or display insolent gestures and disrespectful motions of the limbs. If the king becomes gratified, he can shower prosperity like god. If he becomes enraged, he can consume to the very roots like a blazing fire. This, O king, was said by Yama. Its truth is seen in the affairs of the world. I shall now (acting according to these precepts) do that which would enhance thy prosperity. Friends like ourselves can give unto friends like thee the aid of their intelligence in seasons of peril.