secret room in the coliseum

i went to the coliseum (home of Eno [not brian] yesterday for a meeting. i needed a power socket to plug my laptop in to send some emails and i was escorted to a little room by the staircase.
in it was a little table and an even smaller room with a sink (and i assume round the corner a toilet). unfortunately it was out of mobile and wifi coverage so it wasn’t much use to me.
fancy that.