Not only is the answer no but I hadn't even heard about it! It seems like another rather lame PR event, to be honest, despite the worthy cause.
sparkymark: Read Tim Vine's wikipedia entry: which of the jokes there do you find funny?
3, 6, 8 & 10 made me smile a little, the others left me cold.
shepline: How will I cope with two adorable, black kittens? ;-)
By moving everything breakable out of pouncing range!