I know this sounds like something I would have said many years ago, as a child, but...
"I've just finished my Christmas Annual"
That's right, I was given the QI Christmas Annual and tonight I had time to finish reading through all the trvial facts contained within it. So, that's another QI book I have now gone through - the 2009 annual, the 2008 annual, and the book of general ignorance. I now know so much useless information it's untrue.
