On Sat, 03 May 2014 02:48:36 +0100, The Natural Philosopher wrote:

If you think that a carefully PRINTED wording that looks to a casual
glance as though its part of the poster is nothing more than a lone
person having a bit of fun...

Because, of course, it's SO difficult in the 21st century for one person
to "print wording" and stick it on a poster on their tod.