How do you manage your anger when you meet with a recalcitrant clients?

[Btaliat]

Nobody is guaranteeing you that you won't meet with some clients that are so rude. They don't follow simple instructions and they won't give you what you want. Unfortunately sometimes, they may not even listen to you when you direct them and they may not want to stop giving you task. A freelancer must find all what he can do to make sure that they manage their anger well to have a good time with those clients.