I'd love to travel on the 23rd, I can't though. My exams are right up until the end of the 23rd.
And this being the Saturday, my usual route home through CRL is unavailable. AMS is too expensive, which leaves BRU-LHR-MAN or a lengthy walk. The Eurostar is too unreliable in the winter, and I figured I'd rather be stuck in Heathrow than stuck in the Channel Tunnel.