Organize everything to feel useless. Remind them of their low social position.
Embarace them in public: do scandals, Berre with them, fought with the box because of them.
Let them hope, never come in time. Lose or forget important things that it has entrusted to you: documents, keys, wallet.
Repeat always "You have no responsibility!" (Nothing bothers both as a Capricorn be called irresponsible).
Imply that he is leaving to head to grow the company.
Repeat from time to time - "You are a boring!"
