Nowadays, there are only limited functioning vanishing cabinets registered in Great Britain. Nevertheless, it is believed that unsafe and unregistered cabinets are hidden among wizards. The ministry expressly warns against using questionable-looking cabinets and appeals to report any suspicious furniture. [...] there have been rumours about the possible existence of unregistered cabinets in Knockturn Alley, but Aurors have not found anything more than altered joke cabinets in the last years.