Thank you to all readers who entertained Diary with their submissions to the collective noun for PROs competition.
Several entries came up more than once. An 'Alice band of PRs' was suggested, although this does tend to exclude men. And a 'schmooze of PRs' rated several mentions, for obvious reasons.
On Diary's highly commended list comes the following entry, from Angela Barnard, Corus Service Centres publicity officer. 'I would suggest taking a lead from the creative licence employed in most press releases and call it a 'significant number'.'
Diary enjoyed the self-flagellation of an 'overpromise' and a 'lie' of PROs, from Mulberry Marketing's Chris Klopper and Republic's Derek Harris respectively.
Brian Clark had numerous suggestions (what is the collective noun for a group of collective nouns?), including a 'puffery of PROs'.
But there can only be one winner, and the prize actually goes to a journalist, Ken Andrew, showbiz reporter on London Tonight. The winning entry, and official collective noun for PROs is ... a smokescreen.
So now you know.