Why is a raven like a writing desk?

Today's art journal offering :)

Had another lovely Buffy day with MsInk and The Smu. We met much too early (I consider 10.30am stupidly early) especially considering I've not been sleeping much recently and am in a permanent dazed state (I realise that is fairly normal even when I am sleeping well..) but there was much excited chatter and coffee and cake and lunch and the fabulous end of Season 3 and the first 2 episodes of Angel which all perked me right up :D