Wow! they don't do things by halves in Tokyo it would appear.
Boss of Rakuten, gifts leading Japanese publishing supremo with tee shirt emblazoned with, datou amazon.(Destroy amazon).
I'm sure it was only meant in jest......
Full article here which makes for fascinating reading, especially if you are interested in very smart geopolitical marketing.
http://publishingperspectives.com/2012/07/destroy-amazon-rakuten-kobo-and-kodanshas-tokyo-love-in/