No one can deny provocation is a useful tactic. At least to direct attention to what you want, if not get what you want (think Madonna, circa 1986 and conical bras). Sometimes democracy is best exemplified by its allowances for irony and parody- you may speak and blabber, but you have to poke right at the tender meat of the matter for anyone to truly listen.
Perhaps the more we get to parody is a truer reflection of the amount of freedom we have to protest. Democracy says, speak, even if you make me look silly.
[ -from Friends of the Earth ]
This was from 2003, against that war (hint: includes a certain bush). Perhaps the only war dominating our social consciousness.