This man at my work monopolizes the WiFi . He even takes it home with him . I needed to update my IPhone to IOS 13 with is about 2GB . He switches it on when he wants to use it and once he is through he switches it off . My phone is on auto connect to the WiFi so when he switches it on , my update continues. When he realizes 2GB disappeared , he won’t know what hit him . All these annoying people at work .