1.
The weirdly cautious message of insurrection.
2.
The customer complaint.
3.
The admirably creative insult.
4.
The gleeful invitation to serious injury.
6.
The self-reflexive criticism.
8.
The slightly unfair generalisation.
11.
The shocking act of movie poster vandalism.
12.
The smart subversion of corporate logos.
13.
The cheekily doctored road sign.
15.
The kind-hearted display of community spirit.
16.
The graffiti that refers to itself.
18.
The London Underground sign-bomb.
19.
The crude newspaper defacement.
20.
The ingenious act of anthropomorphism.
21.
The smart-arse rejoinder.
22.
The below-the-belt jibe.
23.
The harbinger of doom.
24.
The needlessly courteous request.
26.
The eloquent political protest.
27.
And of course, last but not least - the plaintive cock and balls.