And this is why we love Gaius.
Watch and you will understand!
http://www.bbc.co.uk/iplayer/episode/b00pfnng/Children_in_Need_2009_Part_1_Strictly_Come_Dancing_Merlin_JLS_Doctor_Who_Taylor_Swift/ Sorry, haven't the faintest idea how to embed my URL from BBC iPlayer. But seriously, watch this. It is so worth it.
Skip to 24 minutes and 30 seconds!!!! IMPORTANT! Unless you want to watch 24 minutes of other non-Merliny stuff.