What should I do with this man?

This is the human society in China. Well, I can understand the difficulty of this subject.

But even relatives, if you harass guests and disturb the order of the hotel without the permission of others, you can only be regarded as shielding if you still keep such employees. In this way, the loss he brings is far less than the value he can create. If you think in this way, there is no harm in driving him away.