I assume this perticular train had no declassified first class or plug sockets for public use in any standard class carriage. If it did then he didn't need to use any first class facilties. If it didn't, then he's was just unlucky to be on a train that only provided electricity to first class passengers. I wonder what percentage of UK trains only have plug sockets in first class vers them being in standard class as well as first class? Obviously not every train has plug sockets, even some which have first class!