Remove a device from my broadband network

[Armoon]

Sometimes my relative turns into a werewolf at night with loud music and lots of noise (my wifi powers this), disturbing neighbours. They are sane during the day and I don't mind them being connected to the internet, but when the full moon rises I want the ability to remove them from my WiFi remotely so I don't need to interact with a drunker and try to stop them. 

[Chrisee]

@Armoon not an easy thing to achieve the only way I think you can do it is to buy Sky's WiFi Max bundle that contains parental controls allowing you to either switch off WiFi by device by schedule or as nedded see https://www.sky.com/help/articles/sky-wifi-max